Home / 20,776,508.10-31,164,762.15-12,592,316.70

Finding the Fourth Proportional to 20,776,508.10, 31,164,762.15 and 12,592,316.70

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Solution

The fourth proportional to 20,776,508.10, 31,164,762.15 and 12,592,316.70 is: 18,888,475.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,776,508.10 : 31,164,762.15 = 12,592,316.70 : x
  2. Step 2: Convert to fraction form
    20,776,508.10/31,164,762.15 = 12,592,316.70/x
  3. Step 3: Cross multiply
    20,776,508.10x = 31,164,762.15 × 12,592,316.70
  4. Step 4: Simplify right side
    20,776,508.10x = 392,436,554,872,972.88
  5. Step 5: Solve for x
    x = 392,436,554,872,972.88/20,776,508.10
  6. Step 6: Final answer
    x = 18,888,475.05

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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.