Home / 72,115,764.42-108,172,701.76-17,528,191.36

Finding the Fourth Proportional to 72,115,764.42, 108,172,701.76 and 17,528,191.36

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Solution

The fourth proportional to 72,115,764.42, 108,172,701.76 and 17,528,191.36 is: 26,292,057.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,115,764.42 : 108,172,701.76 = 17,528,191.36 : x
  2. Step 2: Convert to fraction form
    72,115,764.42/108,172,701.76 = 17,528,191.36/x
  3. Step 3: Cross multiply
    72,115,764.42x = 108,172,701.76 × 17,528,191.36
  4. Step 4: Simplify right side
    72,115,764.42x = 1,896,071,816,377,488.75
  5. Step 5: Solve for x
    x = 1,896,071,816,377,488.75/72,115,764.42
  6. Step 6: Final answer
    x = 26,292,057.38

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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.