Home / 28,996,720.14-40,015,192.46-15,765,896.88

Finding the Fourth Proportional to 28,996,720.14, 40,015,192.46 and 15,765,896.88

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Solution

The fourth proportional to 28,996,720.14, 40,015,192.46 and 15,765,896.88 is: 21,756,784.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,996,720.14 : 40,015,192.46 = 15,765,896.88 : x
  2. Step 2: Convert to fraction form
    28,996,720.14/40,015,192.46 = 15,765,896.88/x
  3. Step 3: Cross multiply
    28,996,720.14x = 40,015,192.46 × 15,765,896.88
  4. Step 4: Simplify right side
    28,996,720.14x = 630,875,397,957,713.62
  5. Step 5: Solve for x
    x = 630,875,397,957,713.62/28,996,720.14
  6. Step 6: Final answer
    x = 21,756,784.73

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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.