Home / 12,182,963.70-16,820,134.20-7,839,598.11

Finding the Fourth Proportional to 12,182,963.70, 16,820,134.20 and 7,839,598.11

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Solution

The fourth proportional to 12,182,963.70, 16,820,134.20 and 7,839,598.11 is: 10,823,564.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,182,963.70 : 16,820,134.20 = 7,839,598.11 : x
  2. Step 2: Convert to fraction form
    12,182,963.70/16,820,134.20 = 7,839,598.11/x
  3. Step 3: Cross multiply
    12,182,963.70x = 16,820,134.20 × 7,839,598.11
  4. Step 4: Simplify right side
    12,182,963.70x = 131,863,092,200,165.69
  5. Step 5: Solve for x
    x = 131,863,092,200,165.69/12,182,963.70
  6. Step 6: Final answer
    x = 10,823,564.40

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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.