Home / 521,520,778,890.90-782,281,168,336.35-501,684,849,854.10

Finding the Fourth Proportional to 521,520,778,890.90, 782,281,168,336.35 and 501,684,849,854.10

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Solution

The fourth proportional to 521,520,778,890.90, 782,281,168,336.35 and 501,684,849,854.10 is: 752,527,274,781.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,520,778,890.90 : 782,281,168,336.35 = 501,684,849,854.10 : x
  2. Step 2: Convert to fraction form
    521,520,778,890.90/782,281,168,336.35 = 501,684,849,854.10/x
  3. Step 3: Cross multiply
    521,520,778,890.90x = 782,281,168,336.35 × 501,684,849,854.10
  4. Step 4: Simplify right side
    521,520,778,890.90x = 392,458,610,480,511,631,491,072
  5. Step 5: Solve for x
    x = 392,458,610,480,511,631,491,072/521,520,778,890.90
  6. Step 6: Final answer
    x = 752,527,274,781.15

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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.