Home / 82,615,820.40-123,923,730.60-73,687,611.60

Finding the Fourth Proportional to 82,615,820.40, 123,923,730.60 and 73,687,611.60

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Solution

The fourth proportional to 82,615,820.40, 123,923,730.60 and 73,687,611.60 is: 110,531,417.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,615,820.40 : 123,923,730.60 = 73,687,611.60 : x
  2. Step 2: Convert to fraction form
    82,615,820.40/123,923,730.60 = 73,687,611.60/x
  3. Step 3: Cross multiply
    82,615,820.40x = 123,923,730.60 × 73,687,611.60
  4. Step 4: Simplify right side
    82,615,820.40x = 9,131,643,728,475,834
  5. Step 5: Solve for x
    x = 9,131,643,728,475,834/82,615,820.40
  6. Step 6: Final answer
    x = 110,531,417.40

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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.