Home / 766,416,327.48-1,057,654,369.54-413,992,327.30

Finding the Fourth Proportional to 766,416,327.48, 1,057,654,369.54 and 413,992,327.30

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Solution

The fourth proportional to 766,416,327.48, 1,057,654,369.54 and 413,992,327.30 is: 571,309,323.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,416,327.48 : 1,057,654,369.54 = 413,992,327.30 : x
  2. Step 2: Convert to fraction form
    766,416,327.48/1,057,654,369.54 = 413,992,327.30/x
  3. Step 3: Cross multiply
    766,416,327.48x = 1,057,654,369.54 × 413,992,327.30
  4. Step 4: Simplify right side
    766,416,327.48x = 437,860,793,924,878,848
  5. Step 5: Solve for x
    x = 437,860,793,924,878,848/766,416,327.48
  6. Step 6: Final answer
    x = 571,309,323.96

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.