Home / 10,641,986.60-15,962,979.90-7,240,764.20

Finding the Fourth Proportional to 10,641,986.60, 15,962,979.90 and 7,240,764.20

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Solution

The fourth proportional to 10,641,986.60, 15,962,979.90 and 7,240,764.20 is: 10,861,146.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,641,986.60 : 15,962,979.90 = 7,240,764.20 : x
  2. Step 2: Convert to fraction form
    10,641,986.60/15,962,979.90 = 7,240,764.20/x
  3. Step 3: Cross multiply
    10,641,986.60x = 15,962,979.90 × 7,240,764.20
  4. Step 4: Simplify right side
    10,641,986.60x = 115,584,173,385,239.58
  5. Step 5: Solve for x
    x = 115,584,173,385,239.58/10,641,986.60
  6. Step 6: Final answer
    x = 10,861,146.30

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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.