Home / 121,502,439.15-167,673,810.45-65,747,860

Finding the Fourth Proportional to 121,502,439.15, 167,673,810.45 and 65,747,860

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Solution

The fourth proportional to 121,502,439.15, 167,673,810.45 and 65,747,860 is: 90,732,287.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,502,439.15 : 167,673,810.45 = 65,747,860 : x
  2. Step 2: Convert to fraction form
    121,502,439.15/167,673,810.45 = 65,747,860/x
  3. Step 3: Cross multiply
    121,502,439.15x = 167,673,810.45 × 65,747,860
  4. Step 4: Simplify right side
    121,502,439.15x = 11,024,194,215,133,136
  5. Step 5: Solve for x
    x = 11,024,194,215,133,136/121,502,439.15
  6. Step 6: Final answer
    x = 90,732,287.29

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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.