Home / 90,856,513.40-136,284,770.10-54,576,807.80

Finding the Fourth Proportional to 90,856,513.40, 136,284,770.10 and 54,576,807.80

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Solution

The fourth proportional to 90,856,513.40, 136,284,770.10 and 54,576,807.80 is: 81,865,211.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,856,513.40 : 136,284,770.10 = 54,576,807.80 : x
  2. Step 2: Convert to fraction form
    90,856,513.40/136,284,770.10 = 54,576,807.80/x
  3. Step 3: Cross multiply
    90,856,513.40x = 136,284,770.10 × 54,576,807.80
  4. Step 4: Simplify right side
    90,856,513.40x = 7,437,987,703,814,886
  5. Step 5: Solve for x
    x = 7,437,987,703,814,886/90,856,513.40
  6. Step 6: Final answer
    x = 81,865,211.70

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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.