Home / 72,299,002.80-108,414,289.80-42,016,148.40

Finding the Fourth Proportional to 72,299,002.80, 108,414,289.80 and 42,016,148.40

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Solution

The fourth proportional to 72,299,002.80, 108,414,289.80 and 42,016,148.40 is: 63,004,339.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,299,002.80 : 108,414,289.80 = 42,016,148.40 : x
  2. Step 2: Convert to fraction form
    72,299,002.80/108,414,289.80 = 42,016,148.40/x
  3. Step 3: Cross multiply
    72,299,002.80x = 108,414,289.80 × 42,016,148.40
  4. Step 4: Simplify right side
    72,299,002.80x = 4,555,150,888,917,406
  5. Step 5: Solve for x
    x = 4,555,150,888,917,406/72,299,002.80
  6. Step 6: Final answer
    x = 63,004,339.10

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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.