Home / 220,064,609.40-329,886,962.10-81,853,207.80

Finding the Fourth Proportional to 220,064,609.40, 329,886,962.10 and 81,853,207.80

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Solution

The fourth proportional to 220,064,609.40, 329,886,962.10 and 81,853,207.80 is: 122,701,719.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,064,609.40 : 329,886,962.10 = 81,853,207.80 : x
  2. Step 2: Convert to fraction form
    220,064,609.40/329,886,962.10 = 81,853,207.80/x
  3. Step 3: Cross multiply
    220,064,609.40x = 329,886,962.10 × 81,853,207.80
  4. Step 4: Simplify right side
    220,064,609.40x = 27,002,306,059,282,024
  5. Step 5: Solve for x
    x = 27,002,306,059,282,024/220,064,609.40
  6. Step 6: Final answer
    x = 122,701,719.89

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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.