Home / 1,329,214,565.70-1,993,821,848.55-640,467,029.70

Finding the Fourth Proportional to 1,329,214,565.70, 1,993,821,848.55 and 640,467,029.70

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Solution

The fourth proportional to 1,329,214,565.70, 1,993,821,848.55 and 640,467,029.70 is: 960,700,544.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,214,565.70 : 1,993,821,848.55 = 640,467,029.70 : x
  2. Step 2: Convert to fraction form
    1,329,214,565.70/1,993,821,848.55 = 640,467,029.70/x
  3. Step 3: Cross multiply
    1,329,214,565.70x = 1,993,821,848.55 × 640,467,029.70
  4. Step 4: Simplify right side
    1,329,214,565.70x = 1,276,977,157,091,781,888
  5. Step 5: Solve for x
    x = 1,276,977,157,091,781,888/1,329,214,565.70
  6. Step 6: Final answer
    x = 960,700,544.55

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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.