Home / 72,982,855.40-100,179,853.20-64,537,886.12

Finding the Fourth Proportional to 72,982,855.40, 100,179,853.20 and 64,537,886.12

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Solution

The fourth proportional to 72,982,855.40, 100,179,853.20 and 64,537,886.12 is: 88,587,873.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,982,855.40 : 100,179,853.20 = 64,537,886.12 : x
  2. Step 2: Convert to fraction form
    72,982,855.40/100,179,853.20 = 64,537,886.12/x
  3. Step 3: Cross multiply
    72,982,855.40x = 100,179,853.20 × 64,537,886.12
  4. Step 4: Simplify right side
    72,982,855.40x = 6,465,395,956,839,019
  5. Step 5: Solve for x
    x = 6,465,395,956,839,019/72,982,855.40
  6. Step 6: Final answer
    x = 88,587,873.44

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.