Home / 28,900,079.10-39,882,089.34-15,847,560.36

Finding the Fourth Proportional to 28,900,079.10, 39,882,089.34 and 15,847,560.36

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Solution

The fourth proportional to 28,900,079.10, 39,882,089.34 and 15,847,560.36 is: 21,869,622.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,900,079.10 : 39,882,089.34 = 15,847,560.36 : x
  2. Step 2: Convert to fraction form
    28,900,079.10/39,882,089.34 = 15,847,560.36/x
  3. Step 3: Cross multiply
    28,900,079.10x = 39,882,089.34 × 15,847,560.36
  4. Step 4: Simplify right side
    28,900,079.10x = 632,033,818,098,562.62
  5. Step 5: Solve for x
    x = 632,033,818,098,562.62/28,900,079.10
  6. Step 6: Final answer
    x = 21,869,622.43

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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.