Home / 107,892,403.60-161,838,605.40-39,720,989.20

Finding the Fourth Proportional to 107,892,403.60, 161,838,605.40 and 39,720,989.20

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Solution

The fourth proportional to 107,892,403.60, 161,838,605.40 and 39,720,989.20 is: 59,581,483.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,892,403.60 : 161,838,605.40 = 39,720,989.20 : x
  2. Step 2: Convert to fraction form
    107,892,403.60/161,838,605.40 = 39,720,989.20/x
  3. Step 3: Cross multiply
    107,892,403.60x = 161,838,605.40 × 39,720,989.20
  4. Step 4: Simplify right side
    107,892,403.60x = 6,428,389,497,236,462
  5. Step 5: Solve for x
    x = 6,428,389,497,236,462/107,892,403.60
  6. Step 6: Final answer
    x = 59,581,483.80

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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.