Home / 87,066,428.96-120,148,069.64-47,374,123.07

Finding the Fourth Proportional to 87,066,428.96, 120,148,069.64 and 47,374,123.07

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Solution

The fourth proportional to 87,066,428.96, 120,148,069.64 and 47,374,123.07 is: 65,374,329.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,066,428.96 : 120,148,069.64 = 47,374,123.07 : x
  2. Step 2: Convert to fraction form
    87,066,428.96/120,148,069.64 = 47,374,123.07/x
  3. Step 3: Cross multiply
    87,066,428.96x = 120,148,069.64 × 47,374,123.07
  4. Step 4: Simplify right side
    87,066,428.96x = 5,691,909,438,167,096
  5. Step 5: Solve for x
    x = 5,691,909,438,167,096/87,066,428.96
  6. Step 6: Final answer
    x = 65,374,329.76

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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.