Home / 1,248,154,311.80-1,872,231,467.70-635,934,279.80

Finding the Fourth Proportional to 1,248,154,311.80, 1,872,231,467.70 and 635,934,279.80

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Solution

The fourth proportional to 1,248,154,311.80, 1,872,231,467.70 and 635,934,279.80 is: 953,901,419.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,154,311.80 : 1,872,231,467.70 = 635,934,279.80 : x
  2. Step 2: Convert to fraction form
    1,248,154,311.80/1,872,231,467.70 = 635,934,279.80/x
  3. Step 3: Cross multiply
    1,248,154,311.80x = 1,872,231,467.70 × 635,934,279.80
  4. Step 4: Simplify right side
    1,248,154,311.80x = 1,190,616,170,030,696,448
  5. Step 5: Solve for x
    x = 1,190,616,170,030,696,448/1,248,154,311.80
  6. Step 6: Final answer
    x = 953,901,419.70

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Half scale
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Double scale
Find fourth proportional to 1,248,154,312.80, 1,872,231,469.20 and 635,934,280.80
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.