Home / 515,833,666.20-773,750,499.30-486,272,424.60

Finding the Fourth Proportional to 515,833,666.20, 773,750,499.30 and 486,272,424.60

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Solution

The fourth proportional to 515,833,666.20, 773,750,499.30 and 486,272,424.60 is: 729,408,636.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,833,666.20 : 773,750,499.30 = 486,272,424.60 : x
  2. Step 2: Convert to fraction form
    515,833,666.20/773,750,499.30 = 486,272,424.60/x
  3. Step 3: Cross multiply
    515,833,666.20x = 773,750,499.30 × 486,272,424.60
  4. Step 4: Simplify right side
    515,833,666.20x = 376,253,531,330,071,616
  5. Step 5: Solve for x
    x = 376,253,531,330,071,616/515,833,666.20
  6. Step 6: Final answer
    x = 729,408,636.90

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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.