Home / 28,230,765.12-42,348,171.69-11,819,534.90

Finding the Fourth Proportional to 28,230,765.12, 42,348,171.69 and 11,819,534.90

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Solution

The fourth proportional to 28,230,765.12, 42,348,171.69 and 11,819,534.90 is: 17,730,149.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,230,765.12 : 42,348,171.69 = 11,819,534.90 : x
  2. Step 2: Convert to fraction form
    28,230,765.12/42,348,171.69 = 11,819,534.90/x
  3. Step 3: Cross multiply
    28,230,765.12x = 42,348,171.69 × 11,819,534.90
  4. Step 4: Simplify right side
    28,230,765.12x = 500,535,693,029,406.06
  5. Step 5: Solve for x
    x = 500,535,693,029,406.06/28,230,765.12
  6. Step 6: Final answer
    x = 17,730,149.75

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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.