Home / 18,723,007.60-28,084,511.40-9,144,530.80

Finding the Fourth Proportional to 18,723,007.60, 28,084,511.40 and 9,144,530.80

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Solution

The fourth proportional to 18,723,007.60, 28,084,511.40 and 9,144,530.80 is: 13,716,796.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723,007.60 : 28,084,511.40 = 9,144,530.80 : x
  2. Step 2: Convert to fraction form
    18,723,007.60/28,084,511.40 = 9,144,530.80/x
  3. Step 3: Cross multiply
    18,723,007.60x = 28,084,511.40 × 9,144,530.80
  4. Step 4: Simplify right side
    18,723,007.60x = 256,819,679,500,251.12
  5. Step 5: Solve for x
    x = 256,819,679,500,251.12/18,723,007.60
  6. Step 6: Final answer
    x = 13,716,796.20

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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.