Home / 18,672,225.20-28,008,337.80-5,209,053.20

Finding the Fourth Proportional to 18,672,225.20, 28,008,337.80 and 5,209,053.20

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Solution

The fourth proportional to 18,672,225.20, 28,008,337.80 and 5,209,053.20 is: 7,813,579.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,672,225.20 : 28,008,337.80 = 5,209,053.20 : x
  2. Step 2: Convert to fraction form
    18,672,225.20/28,008,337.80 = 5,209,053.20/x
  3. Step 3: Cross multiply
    18,672,225.20x = 28,008,337.80 × 5,209,053.20
  4. Step 4: Simplify right side
    18,672,225.20x = 145,896,921,643,770.97
  5. Step 5: Solve for x
    x = 145,896,921,643,770.97/18,672,225.20
  6. Step 6: Final answer
    x = 7,813,579.80

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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.