Home / 99,445,139.91-137,227,239.09-54,789,161.40

Finding the Fourth Proportional to 99,445,139.91, 137,227,239.09 and 54,789,161.40

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Solution

The fourth proportional to 99,445,139.91, 137,227,239.09 and 54,789,161.40 is: 75,605,156.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,445,139.91 : 137,227,239.09 = 54,789,161.40 : x
  2. Step 2: Convert to fraction form
    99,445,139.91/137,227,239.09 = 54,789,161.40/x
  3. Step 3: Cross multiply
    99,445,139.91x = 137,227,239.09 × 54,789,161.40
  4. Step 4: Simplify right side
    99,445,139.91x = 7,518,565,350,978,399
  5. Step 5: Solve for x
    x = 7,518,565,350,978,399/99,445,139.91
  6. Step 6: Final answer
    x = 75,605,156.35

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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.