Home / 72,914,882.40-109,225,357.20-45,537,141.60

Finding the Fourth Proportional to 72,914,882.40, 109,225,357.20 and 45,537,141.60

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Solution

The fourth proportional to 72,914,882.40, 109,225,357.20 and 45,537,141.60 is: 68,213,928.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,914,882.40 : 109,225,357.20 = 45,537,141.60 : x
  2. Step 2: Convert to fraction form
    72,914,882.40/109,225,357.20 = 45,537,141.60/x
  3. Step 3: Cross multiply
    72,914,882.40x = 109,225,357.20 × 45,537,141.60
  4. Step 4: Simplify right side
    72,914,882.40x = 4,973,810,557,126,980
  5. Step 5: Solve for x
    x = 4,973,810,557,126,980/72,914,882.40
  6. Step 6: Final answer
    x = 68,213,928.26

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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.