Home / 154,092,945.35-231,218,885.11-72,220,141.35

Finding the Fourth Proportional to 154,092,945.35, 231,218,885.11 and 72,220,141.35

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Solution

The fourth proportional to 154,092,945.35, 231,218,885.11 and 72,220,141.35 is: 108,367,456.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,092,945.35 : 231,218,885.11 = 72,220,141.35 : x
  2. Step 2: Convert to fraction form
    154,092,945.35/231,218,885.11 = 72,220,141.35/x
  3. Step 3: Cross multiply
    154,092,945.35x = 231,218,885.11 × 72,220,141.35
  4. Step 4: Simplify right side
    154,092,945.35x = 16,698,660,564,615,768
  5. Step 5: Solve for x
    x = 16,698,660,564,615,768/154,092,945.35
  6. Step 6: Final answer
    x = 108,367,456.58

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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.