Home / 121,502,499.43-167,673,893.80-65,747,920.60

Finding the Fourth Proportional to 121,502,499.43, 167,673,893.80 and 65,747,920.60

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Solution

The fourth proportional to 121,502,499.43, 167,673,893.80 and 65,747,920.60 is: 90,732,371.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,502,499.43 : 167,673,893.80 = 65,747,920.60 : x
  2. Step 2: Convert to fraction form
    121,502,499.43/167,673,893.80 = 65,747,920.60/x
  3. Step 3: Cross multiply
    121,502,499.43x = 167,673,893.80 × 65,747,920.60
  4. Step 4: Simplify right side
    121,502,499.43x = 11,024,209,856,255,234
  5. Step 5: Solve for x
    x = 11,024,209,856,255,234/121,502,499.43
  6. Step 6: Final answer
    x = 90,732,371.00

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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.