Home / 12,145,280.10-18,215,004.15-7,016,619.30

Finding the Fourth Proportional to 12,145,280.10, 18,215,004.15 and 7,016,619.30

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Solution

The fourth proportional to 12,145,280.10, 18,215,004.15 and 7,016,619.30 is: 10,523,244.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,145,280.10 : 18,215,004.15 = 7,016,619.30 : x
  2. Step 2: Convert to fraction form
    12,145,280.10/18,215,004.15 = 7,016,619.30/x
  3. Step 3: Cross multiply
    12,145,280.10x = 18,215,004.15 × 7,016,619.30
  4. Step 4: Simplify right side
    12,145,280.10x = 127,807,749,668,470.08
  5. Step 5: Solve for x
    x = 127,807,749,668,470.08/12,145,280.10
  6. Step 6: Final answer
    x = 10,523,244.31

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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.