Home / 15,753,398.70-21,739,152.74-8,689,271.88

Finding the Fourth Proportional to 15,753,398.70, 21,739,152.74 and 8,689,271.88

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Solution

The fourth proportional to 15,753,398.70, 21,739,152.74 and 8,689,271.88 is: 11,990,898.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,753,398.70 : 21,739,152.74 = 8,689,271.88 : x
  2. Step 2: Convert to fraction form
    15,753,398.70/21,739,152.74 = 8,689,271.88/x
  3. Step 3: Cross multiply
    15,753,398.70x = 21,739,152.74 × 8,689,271.88
  4. Step 4: Simplify right side
    15,753,398.70x = 188,897,408,598,706.97
  5. Step 5: Solve for x
    x = 188,897,408,598,706.97/15,753,398.70
  6. Step 6: Final answer
    x = 11,990,898.74

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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.