Home / 121,291,711.32-181,885,778.82-70,208,990.04

Finding the Fourth Proportional to 121,291,711.32, 181,885,778.82 and 70,208,990.04

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Solution

The fourth proportional to 121,291,711.32, 181,885,778.82 and 70,208,990.04 is: 105,283,507.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,291,711.32 : 181,885,778.82 = 70,208,990.04 : x
  2. Step 2: Convert to fraction form
    121,291,711.32/181,885,778.82 = 70,208,990.04/x
  3. Step 3: Cross multiply
    121,291,711.32x = 181,885,778.82 × 70,208,990.04
  4. Step 4: Simplify right side
    121,291,711.32x = 12,770,016,833,591,024
  5. Step 5: Solve for x
    x = 12,770,016,833,591,024/121,291,711.32
  6. Step 6: Final answer
    x = 105,283,507.79

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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.