Home / 42,240,979.63-63,388,124.53-17,979,867.60

Finding the Fourth Proportional to 42,240,979.63, 63,388,124.53 and 17,979,867.60

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Solution

The fourth proportional to 42,240,979.63, 63,388,124.53 and 17,979,867.60 is: 26,981,147.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,240,979.63 : 63,388,124.53 = 17,979,867.60 : x
  2. Step 2: Convert to fraction form
    42,240,979.63/63,388,124.53 = 17,979,867.60/x
  3. Step 3: Cross multiply
    42,240,979.63x = 63,388,124.53 × 17,979,867.60
  4. Step 4: Simplify right side
    42,240,979.63x = 1,139,710,086,332,060.75
  5. Step 5: Solve for x
    x = 1,139,710,086,332,060.75/42,240,979.63
  6. Step 6: Final answer
    x = 26,981,147.13

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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.