Home / 12,679,120.60-17,491,609.80-8,547,642.50

Finding the Fourth Proportional to 12,679,120.60, 17,491,609.80 and 8,547,642.50

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Solution

The fourth proportional to 12,679,120.60, 17,491,609.80 and 8,547,642.50 is: 11,791,987.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,679,120.60 : 17,491,609.80 = 8,547,642.50 : x
  2. Step 2: Convert to fraction form
    12,679,120.60/17,491,609.80 = 8,547,642.50/x
  3. Step 3: Cross multiply
    12,679,120.60x = 17,491,609.80 × 8,547,642.50
  4. Step 4: Simplify right side
    12,679,120.60x = 149,512,027,319,896.50
  5. Step 5: Solve for x
    x = 149,512,027,319,896.50/12,679,120.60
  6. Step 6: Final answer
    x = 11,791,987.16

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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.