Home / 15,708,687.28-21,678,117.60-8,833,109.20

Finding the Fourth Proportional to 15,708,687.28, 21,678,117.60 and 8,833,109.20

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Solution

The fourth proportional to 15,708,687.28, 21,678,117.60 and 8,833,109.20 is: 12,189,763.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,708,687.28 : 21,678,117.60 = 8,833,109.20 : x
  2. Step 2: Convert to fraction form
    15,708,687.28/21,678,117.60 = 8,833,109.20/x
  3. Step 3: Cross multiply
    15,708,687.28x = 21,678,117.60 × 8,833,109.20
  4. Step 4: Simplify right side
    15,708,687.28x = 191,485,180,011,241.91
  5. Step 5: Solve for x
    x = 191,485,180,011,241.91/15,708,687.28
  6. Step 6: Final answer
    x = 12,189,763.32

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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.