Home / 12,679,116.60-17,491,604.28-8,547,638.50

Finding the Fourth Proportional to 12,679,116.60, 17,491,604.28 and 8,547,638.50

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Solution

The fourth proportional to 12,679,116.60, 17,491,604.28 and 8,547,638.50 is: 11,791,981.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,679,116.60 : 17,491,604.28 = 8,547,638.50 : x
  2. Step 2: Convert to fraction form
    12,679,116.60/17,491,604.28 = 8,547,638.50/x
  3. Step 3: Cross multiply
    12,679,116.60x = 17,491,604.28 × 8,547,638.50
  4. Step 4: Simplify right side
    12,679,116.60x = 149,511,910,208,384.12
  5. Step 5: Solve for x
    x = 149,511,910,208,384.12/12,679,116.60
  6. Step 6: Final answer
    x = 11,791,981.64

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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.