Home / 72,809,122.80-109,071,966.60-43,969,591.20

Finding the Fourth Proportional to 72,809,122.80, 109,071,966.60 and 43,969,591.20

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Solution

The fourth proportional to 72,809,122.80, 109,071,966.60 and 43,969,591.20 is: 65,868,803.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,809,122.80 : 109,071,966.60 = 43,969,591.20 : x
  2. Step 2: Convert to fraction form
    72,809,122.80/109,071,966.60 = 43,969,591.20/x
  3. Step 3: Cross multiply
    72,809,122.80x = 109,071,966.60 × 43,969,591.20
  4. Step 4: Simplify right side
    72,809,122.80x = 4,795,849,782,782,054
  5. Step 5: Solve for x
    x = 4,795,849,782,782,054/72,809,122.80
  6. Step 6: Final answer
    x = 65,868,803.23

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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.