Home / 90,856,611.90-136,284,917.85-54,576,906.30

Finding the Fourth Proportional to 90,856,611.90, 136,284,917.85 and 54,576,906.30

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Solution

The fourth proportional to 90,856,611.90, 136,284,917.85 and 54,576,906.30 is: 81,865,359.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,856,611.90 : 136,284,917.85 = 54,576,906.30 : x
  2. Step 2: Convert to fraction form
    90,856,611.90/136,284,917.85 = 54,576,906.30/x
  3. Step 3: Cross multiply
    90,856,611.90x = 136,284,917.85 × 54,576,906.30
  4. Step 4: Simplify right side
    90,856,611.90x = 7,438,009,191,602,647
  5. Step 5: Solve for x
    x = 7,438,009,191,602,647/90,856,611.90
  6. Step 6: Final answer
    x = 81,865,359.45

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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.