Home / 13,780,070.25-20,656,210.38-8,666,154.87

Finding the Fourth Proportional to 13,780,070.25, 20,656,210.38 and 8,666,154.87

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Solution

The fourth proportional to 13,780,070.25, 20,656,210.38 and 8,666,154.87 is: 12,990,493.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,780,070.25 : 20,656,210.38 = 8,666,154.87 : x
  2. Step 2: Convert to fraction form
    13,780,070.25/20,656,210.38 = 8,666,154.87/x
  3. Step 3: Cross multiply
    13,780,070.25x = 20,656,210.38 × 8,666,154.87
  4. Step 4: Simplify right side
    13,780,070.25x = 179,009,918,180,381.53
  5. Step 5: Solve for x
    x = 179,009,918,180,381.53/13,780,070.25
  6. Step 6: Final answer
    x = 12,990,493.88

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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.