Home / 10,142,398.91-15,177,232.35-8,780,855.93

Finding the Fourth Proportional to 10,142,398.91, 15,177,232.35 and 8,780,855.93

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Solution

The fourth proportional to 10,142,398.91, 15,177,232.35 and 8,780,855.93 is: 13,139,799.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,142,398.91 : 15,177,232.35 = 8,780,855.93 : x
  2. Step 2: Convert to fraction form
    10,142,398.91/15,177,232.35 = 8,780,855.93/x
  3. Step 3: Cross multiply
    10,142,398.91x = 15,177,232.35 × 8,780,855.93
  4. Step 4: Simplify right side
    10,142,398.91x = 133,269,090,681,485.33
  5. Step 5: Solve for x
    x = 133,269,090,681,485.33/10,142,398.91
  6. Step 6: Final answer
    x = 13,139,799.75

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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.