Home / 1,298,370,827.20-1,947,745,197.60-424,760,555.20

Finding the Fourth Proportional to 1,298,370,827.20, 1,947,745,197.60 and 424,760,555.20

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Solution

The fourth proportional to 1,298,370,827.20, 1,947,745,197.60 and 424,760,555.20 is: 637,202,649.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,370,827.20 : 1,947,745,197.60 = 424,760,555.20 : x
  2. Step 2: Convert to fraction form
    1,298,370,827.20/1,947,745,197.60 = 424,760,555.20/x
  3. Step 3: Cross multiply
    1,298,370,827.20x = 1,947,745,197.60 × 424,760,555.20
  4. Step 4: Simplify right side
    1,298,370,827.20x = 827,325,331,520,709,632
  5. Step 5: Solve for x
    x = 827,325,331,520,709,632/1,298,370,827.20
  6. Step 6: Final answer
    x = 637,202,649.80

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Half scale
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Double scale
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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.