Home / 72,319,673.52-99,801,882.54-39,280,241.88

Finding the Fourth Proportional to 72,319,673.52, 99,801,882.54 and 39,280,241.88

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Solution

The fourth proportional to 72,319,673.52, 99,801,882.54 and 39,280,241.88 is: 54,207,131.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,319,673.52 : 99,801,882.54 = 39,280,241.88 : x
  2. Step 2: Convert to fraction form
    72,319,673.52/99,801,882.54 = 39,280,241.88/x
  3. Step 3: Cross multiply
    72,319,673.52x = 99,801,882.54 × 39,280,241.88
  4. Step 4: Simplify right side
    72,319,673.52x = 3,920,242,086,250,549.50
  5. Step 5: Solve for x
    x = 3,920,242,086,250,549.50/72,319,673.52
  6. Step 6: Final answer
    x = 54,207,131.97

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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.