Home / 90,660,972.88-125,108,492.61-49,406,979.52

Finding the Fourth Proportional to 90,660,972.88, 125,108,492.61 and 49,406,979.52

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Solution

The fourth proportional to 90,660,972.88, 125,108,492.61 and 49,406,979.52 is: 68,179,642.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,660,972.88 : 125,108,492.61 = 49,406,979.52 : x
  2. Step 2: Convert to fraction form
    90,660,972.88/125,108,492.61 = 49,406,979.52/x
  3. Step 3: Cross multiply
    90,660,972.88x = 125,108,492.61 × 49,406,979.52
  4. Step 4: Simplify right side
    90,660,972.88x = 6,181,232,731,847,570
  5. Step 5: Solve for x
    x = 6,181,232,731,847,570/90,660,972.88
  6. Step 6: Final answer
    x = 68,179,642.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.