Home / 8,531,990.20-12,797,985.30-5,508,681.40

Finding the Fourth Proportional to 8,531,990.20, 12,797,985.30 and 5,508,681.40

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Solution

The fourth proportional to 8,531,990.20, 12,797,985.30 and 5,508,681.40 is: 8,263,022.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,531,990.20 : 12,797,985.30 = 5,508,681.40 : x
  2. Step 2: Convert to fraction form
    8,531,990.20/12,797,985.30 = 5,508,681.40/x
  3. Step 3: Cross multiply
    8,531,990.20x = 12,797,985.30 × 5,508,681.40
  4. Step 4: Simplify right side
    8,531,990.20x = 70,500,023,579,583.42
  5. Step 5: Solve for x
    x = 70,500,023,579,583.42/8,531,990.20
  6. Step 6: Final answer
    x = 8,263,022.10

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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.