Home / 67,986,995.40-101,980,366.74-21,304,055.88

Finding the Fourth Proportional to 67,986,995.40, 101,980,366.74 and 21,304,055.88

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Solution

The fourth proportional to 67,986,995.40, 101,980,366.74 and 21,304,055.88 is: 31,956,044.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,986,995.40 : 101,980,366.74 = 21,304,055.88 : x
  2. Step 2: Convert to fraction form
    67,986,995.40/101,980,366.74 = 21,304,055.88/x
  3. Step 3: Cross multiply
    67,986,995.40x = 101,980,366.74 × 21,304,055.88
  4. Step 4: Simplify right side
    67,986,995.40x = 2,172,595,431,691,853.25
  5. Step 5: Solve for x
    x = 2,172,595,431,691,853.25/67,986,995.40
  6. Step 6: Final answer
    x = 31,956,044.22

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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.