Home / 10,975,009.77-15,121,125.72-7,247,221.83

Finding the Fourth Proportional to 10,975,009.77, 15,121,125.72 and 7,247,221.83

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Solution

The fourth proportional to 10,975,009.77, 15,121,125.72 and 7,247,221.83 is: 9,985,061.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,975,009.77 : 15,121,125.72 = 7,247,221.83 : x
  2. Step 2: Convert to fraction form
    10,975,009.77/15,121,125.72 = 7,247,221.83/x
  3. Step 3: Cross multiply
    10,975,009.77x = 15,121,125.72 × 7,247,221.83
  4. Step 4: Simplify right side
    10,975,009.77x = 109,586,152,412,158.47
  5. Step 5: Solve for x
    x = 109,586,152,412,158.47/10,975,009.77
  6. Step 6: Final answer
    x = 9,985,061.95

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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.