Home / 20,776,670.10-31,165,005.15-12,167,325.90

Finding the Fourth Proportional to 20,776,670.10, 31,165,005.15 and 12,167,325.90

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Solution

The fourth proportional to 20,776,670.10, 31,165,005.15 and 12,167,325.90 is: 18,250,988.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,776,670.10 : 31,165,005.15 = 12,167,325.90 : x
  2. Step 2: Convert to fraction form
    20,776,670.10/31,165,005.15 = 12,167,325.90/x
  3. Step 3: Cross multiply
    20,776,670.10x = 31,165,005.15 × 12,167,325.90
  4. Step 4: Simplify right side
    20,776,670.10x = 379,194,774,335,228.38
  5. Step 5: Solve for x
    x = 379,194,774,335,228.38/20,776,670.10
  6. Step 6: Final answer
    x = 18,250,988.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.