Home / 15,646,992.30-21,594,142.03-8,679,916.12

Finding the Fourth Proportional to 15,646,992.30, 21,594,142.03 and 8,679,916.12

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Solution

The fourth proportional to 15,646,992.30, 21,594,142.03 and 8,679,916.12 is: 11,979,001.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,646,992.30 : 21,594,142.03 = 8,679,916.12 : x
  2. Step 2: Convert to fraction form
    15,646,992.30/21,594,142.03 = 8,679,916.12/x
  3. Step 3: Cross multiply
    15,646,992.30x = 21,594,142.03 × 8,679,916.12
  4. Step 4: Simplify right side
    15,646,992.30x = 187,435,341,416,686.94
  5. Step 5: Solve for x
    x = 187,435,341,416,686.94/15,646,992.30
  6. Step 6: Final answer
    x = 11,979,001.32

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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.