Home / 121,240,616.52-181,975,899.78-75,042,741.06

Finding the Fourth Proportional to 121,240,616.52, 181,975,899.78 and 75,042,741.06

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Solution

The fourth proportional to 121,240,616.52, 181,975,899.78 and 75,042,741.06 is: 112,635,276.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,240,616.52 : 181,975,899.78 = 75,042,741.06 : x
  2. Step 2: Convert to fraction form
    121,240,616.52/181,975,899.78 = 75,042,741.06/x
  3. Step 3: Cross multiply
    121,240,616.52x = 181,975,899.78 × 75,042,741.06
  4. Step 4: Simplify right side
    121,240,616.52x = 13,655,970,326,351,052
  5. Step 5: Solve for x
    x = 13,655,970,326,351,052/121,240,616.52
  6. Step 6: Final answer
    x = 112,635,276.18

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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.