Home / 12,070,341.90-16,655,812.11-6,913,920.78

Finding the Fourth Proportional to 12,070,341.90, 16,655,812.11 and 6,913,920.78

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Solution

The fourth proportional to 12,070,341.90, 16,655,812.11 and 6,913,920.78 is: 9,540,489.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,070,341.90 : 16,655,812.11 = 6,913,920.78 : x
  2. Step 2: Convert to fraction form
    12,070,341.90/16,655,812.11 = 6,913,920.78/x
  3. Step 3: Cross multiply
    12,070,341.90x = 16,655,812.11 × 6,913,920.78
  4. Step 4: Simplify right side
    12,070,341.90x = 115,156,965,455,104.64
  5. Step 5: Solve for x
    x = 115,156,965,455,104.64/12,070,341.90
  6. Step 6: Final answer
    x = 9,540,489.11

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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.