Home / 18,753,090.60-28,129,635.90-4,569,666.60

Finding the Fourth Proportional to 18,753,090.60, 28,129,635.90 and 4,569,666.60

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Solution

The fourth proportional to 18,753,090.60, 28,129,635.90 and 4,569,666.60 is: 6,854,499.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,753,090.60 : 28,129,635.90 = 4,569,666.60 : x
  2. Step 2: Convert to fraction form
    18,753,090.60/28,129,635.90 = 4,569,666.60/x
  3. Step 3: Cross multiply
    18,753,090.60x = 28,129,635.90 × 4,569,666.60
  4. Step 4: Simplify right side
    18,753,090.60x = 128,543,057,642,390.92
  5. Step 5: Solve for x
    x = 128,543,057,642,390.92/18,753,090.60
  6. Step 6: Final answer
    x = 6,854,499.90

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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.