Home / 72,891,284.30-109,364,463.20-43,765,431.95

Finding the Fourth Proportional to 72,891,284.30, 109,364,463.20 and 43,765,431.95

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Solution

The fourth proportional to 72,891,284.30, 109,364,463.20 and 43,765,431.95 is: 65,664,681.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,891,284.30 : 109,364,463.20 = 43,765,431.95 : x
  2. Step 2: Convert to fraction form
    72,891,284.30/109,364,463.20 = 43,765,431.95/x
  3. Step 3: Cross multiply
    72,891,284.30x = 109,364,463.20 × 43,765,431.95
  4. Step 4: Simplify right side
    72,891,284.30x = 4,786,382,971,449,129
  5. Step 5: Solve for x
    x = 4,786,382,971,449,129/72,891,284.30
  6. Step 6: Final answer
    x = 65,664,681.55

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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.