Home / 87,005,126.48-120,070,155.64-47,849,933.84

Finding the Fourth Proportional to 87,005,126.48, 120,070,155.64 and 47,849,933.84

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Solution

The fourth proportional to 87,005,126.48, 120,070,155.64 and 47,849,933.84 is: 66,034,603.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,005,126.48 : 120,070,155.64 = 47,849,933.84 : x
  2. Step 2: Convert to fraction form
    87,005,126.48/120,070,155.64 = 47,849,933.84/x
  3. Step 3: Cross multiply
    87,005,126.48x = 120,070,155.64 × 47,849,933.84
  4. Step 4: Simplify right side
    87,005,126.48x = 5,745,349,003,532,503
  5. Step 5: Solve for x
    x = 5,745,349,003,532,503/87,005,126.48
  6. Step 6: Final answer
    x = 66,034,603.20

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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.