Home / 85,177,807.40-127,766,711.10-54,566,805.80

Finding the Fourth Proportional to 85,177,807.40, 127,766,711.10 and 54,566,805.80

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Solution

The fourth proportional to 85,177,807.40, 127,766,711.10 and 54,566,805.80 is: 81,850,208.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,177,807.40 : 127,766,711.10 = 54,566,805.80 : x
  2. Step 2: Convert to fraction form
    85,177,807.40/127,766,711.10 = 54,566,805.80/x
  3. Step 3: Cross multiply
    85,177,807.40x = 127,766,711.10 × 54,566,805.80
  4. Step 4: Simplify right side
    85,177,807.40x = 6,971,821,312,298,404
  5. Step 5: Solve for x
    x = 6,971,821,312,298,404/85,177,807.40
  6. Step 6: Final answer
    x = 81,850,208.70

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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.