Home / 10,287,501.30-15,415,505.55-9,720,630.90

Finding the Fourth Proportional to 10,287,501.30, 15,415,505.55 and 9,720,630.90

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Solution

The fourth proportional to 10,287,501.30, 15,415,505.55 and 9,720,630.90 is: 14,566,067.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,287,501.30 : 15,415,505.55 = 9,720,630.90 : x
  2. Step 2: Convert to fraction form
    10,287,501.30/15,415,505.55 = 9,720,630.90/x
  3. Step 3: Cross multiply
    10,287,501.30x = 15,415,505.55 × 9,720,630.90
  4. Step 4: Simplify right side
    10,287,501.30x = 149,848,439,588,451.50
  5. Step 5: Solve for x
    x = 149,848,439,588,451.50/10,287,501.30
  6. Step 6: Final answer
    x = 14,566,067.62

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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.