Home / 42,251,147.80-63,376,721.70-13,498,221.40

Finding the Fourth Proportional to 42,251,147.80, 63,376,721.70 and 13,498,221.40

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Solution

The fourth proportional to 42,251,147.80, 63,376,721.70 and 13,498,221.40 is: 20,247,332.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,251,147.80 : 63,376,721.70 = 13,498,221.40 : x
  2. Step 2: Convert to fraction form
    42,251,147.80/63,376,721.70 = 13,498,221.40/x
  3. Step 3: Cross multiply
    42,251,147.80x = 63,376,721.70 × 13,498,221.40
  4. Step 4: Simplify right side
    42,251,147.80x = 855,473,021,112,784.50
  5. Step 5: Solve for x
    x = 855,473,021,112,784.50/42,251,147.80
  6. Step 6: Final answer
    x = 20,247,332.10

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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.