Home / 82,013,679.60-122,936,538.60-47,917,474.80

Finding the Fourth Proportional to 82,013,679.60, 122,936,538.60 and 47,917,474.80

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Solution

The fourth proportional to 82,013,679.60, 122,936,538.60 and 47,917,474.80 is: 71,827,145.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,013,679.60 : 122,936,538.60 = 47,917,474.80 : x
  2. Step 2: Convert to fraction form
    82,013,679.60/122,936,538.60 = 47,917,474.80/x
  3. Step 3: Cross multiply
    82,013,679.60x = 122,936,538.60 × 47,917,474.80
  4. Step 4: Simplify right side
    82,013,679.60x = 5,890,808,490,364,727
  5. Step 5: Solve for x
    x = 5,890,808,490,364,727/82,013,679.60
  6. Step 6: Final answer
    x = 71,827,145.41

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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.