Home / 72,581,446.20-108,872,169.30-70,118,009.40

Finding the Fourth Proportional to 72,581,446.20, 108,872,169.30 and 70,118,009.40

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Solution

The fourth proportional to 72,581,446.20, 108,872,169.30 and 70,118,009.40 is: 105,177,014.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,581,446.20 : 108,872,169.30 = 70,118,009.40 : x
  2. Step 2: Convert to fraction form
    72,581,446.20/108,872,169.30 = 70,118,009.40/x
  3. Step 3: Cross multiply
    72,581,446.20x = 108,872,169.30 × 70,118,009.40
  4. Step 4: Simplify right side
    72,581,446.20x = 7,633,899,790,375,792
  5. Step 5: Solve for x
    x = 7,633,899,790,375,792/72,581,446.20
  6. Step 6: Final answer
    x = 105,177,014.10

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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.