Home / 121,240,640.10-181,975,935.06-75,042,764.58

Finding the Fourth Proportional to 121,240,640.10, 181,975,935.06 and 75,042,764.58

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Solution

The fourth proportional to 121,240,640.10, 181,975,935.06 and 75,042,764.58 is: 112,635,311.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,240,640.10 : 181,975,935.06 = 75,042,764.58 : x
  2. Step 2: Convert to fraction form
    121,240,640.10/181,975,935.06 = 75,042,764.58/x
  3. Step 3: Cross multiply
    121,240,640.10x = 181,975,935.06 × 75,042,764.58
  4. Step 4: Simplify right side
    121,240,640.10x = 13,655,977,253,932,948
  5. Step 5: Solve for x
    x = 13,655,977,253,932,948/121,240,640.10
  6. Step 6: Final answer
    x = 112,635,311.42

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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.