Home / 15,676,827.12-21,635,385.72-8,708,860.12

Finding the Fourth Proportional to 15,676,827.12, 21,635,385.72 and 8,708,860.12

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Solution

The fourth proportional to 15,676,827.12, 21,635,385.72 and 8,708,860.12 is: 12,018,984.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,676,827.12 : 21,635,385.72 = 8,708,860.12 : x
  2. Step 2: Convert to fraction form
    15,676,827.12/21,635,385.72 = 8,708,860.12/x
  3. Step 3: Cross multiply
    15,676,827.12x = 21,635,385.72 × 8,708,860.12
  4. Step 4: Simplify right side
    15,676,827.12x = 188,419,547,877,725.47
  5. Step 5: Solve for x
    x = 188,419,547,877,725.47/15,676,827.12
  6. Step 6: Final answer
    x = 12,018,984.86

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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.