Home / 52,151,344.20-78,171,029.10-19,790,742.60

Finding the Fourth Proportional to 52,151,344.20, 78,171,029.10 and 19,790,742.60

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Solution

The fourth proportional to 52,151,344.20, 78,171,029.10 and 19,790,742.60 is: 29,664,867.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,151,344.20 : 78,171,029.10 = 19,790,742.60 : x
  2. Step 2: Convert to fraction form
    52,151,344.20/78,171,029.10 = 19,790,742.60/x
  3. Step 3: Cross multiply
    52,151,344.20x = 78,171,029.10 × 19,790,742.60
  4. Step 4: Simplify right side
    52,151,344.20x = 1,547,062,715,695,209.75
  5. Step 5: Solve for x
    x = 1,547,062,715,695,209.75/52,151,344.20
  6. Step 6: Final answer
    x = 29,664,867.50

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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.