Home / 12,964,422.72-17,891,040.80-7,163,060.16

Finding the Fourth Proportional to 12,964,422.72, 17,891,040.80 and 7,163,060.16

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Solution

The fourth proportional to 12,964,422.72, 17,891,040.80 and 7,163,060.16 is: 9,885,098.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,964,422.72 : 17,891,040.80 = 7,163,060.16 : x
  2. Step 2: Convert to fraction form
    12,964,422.72/17,891,040.80 = 7,163,060.16/x
  3. Step 3: Cross multiply
    12,964,422.72x = 17,891,040.80 × 7,163,060.16
  4. Step 4: Simplify right side
    12,964,422.72x = 128,154,601,575,414.53
  5. Step 5: Solve for x
    x = 128,154,601,575,414.53/12,964,422.72
  6. Step 6: Final answer
    x = 9,885,098.96

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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.