Home / 72,378,077.40-108,651,096.90-43,656,643.80

Finding the Fourth Proportional to 72,378,077.40, 108,651,096.90 and 43,656,643.80

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Solution

The fourth proportional to 72,378,077.40, 108,651,096.90 and 43,656,643.80 is: 65,535,620.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,378,077.40 : 108,651,096.90 = 43,656,643.80 : x
  2. Step 2: Convert to fraction form
    72,378,077.40/108,651,096.90 = 43,656,643.80/x
  3. Step 3: Cross multiply
    72,378,077.40x = 108,651,096.90 × 43,656,643.80
  4. Step 4: Simplify right side
    72,378,077.40x = 4,743,342,235,842,584
  5. Step 5: Solve for x
    x = 4,743,342,235,842,584/72,378,077.40
  6. Step 6: Final answer
    x = 65,535,620.82

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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.