Home / 15,681,228.04-21,640,349.46-8,712,355.24

Finding the Fourth Proportional to 15,681,228.04, 21,640,349.46 and 8,712,355.24

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Solution

The fourth proportional to 15,681,228.04, 21,640,349.46 and 8,712,355.24 is: 12,023,191.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,681,228.04 : 21,640,349.46 = 8,712,355.24 : x
  2. Step 2: Convert to fraction form
    15,681,228.04/21,640,349.46 = 8,712,355.24/x
  3. Step 3: Cross multiply
    15,681,228.04x = 21,640,349.46 × 8,712,355.24
  4. Step 4: Simplify right side
    15,681,228.04x = 188,538,412,013,262.19
  5. Step 5: Solve for x
    x = 188,538,412,013,262.19/15,681,228.04
  6. Step 6: Final answer
    x = 12,023,191.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.