Home / 72,259,084.61-99,719,023.44-40,897,131.29

Finding the Fourth Proportional to 72,259,084.61, 99,719,023.44 and 40,897,131.29

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Solution

The fourth proportional to 72,259,084.61, 99,719,023.44 and 40,897,131.29 is: 56,438,882.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,259,084.61 : 99,719,023.44 = 40,897,131.29 : x
  2. Step 2: Convert to fraction form
    72,259,084.61/99,719,023.44 = 40,897,131.29/x
  3. Step 3: Cross multiply
    72,259,084.61x = 99,719,023.44 × 40,897,131.29
  4. Step 4: Simplify right side
    72,259,084.61x = 4,078,221,993,237,672
  5. Step 5: Solve for x
    x = 4,078,221,993,237,672/72,259,084.61
  6. Step 6: Final answer
    x = 56,438,882.61

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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.