Home / 8,112,175.40-12,167,472.30-2,128,543.40

Finding the Fourth Proportional to 8,112,175.40, 12,167,472.30 and 2,128,543.40

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Solution

The fourth proportional to 8,112,175.40, 12,167,472.30 and 2,128,543.40 is: 3,192,607.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112,175.40 : 12,167,472.30 = 2,128,543.40 : x
  2. Step 2: Convert to fraction form
    8,112,175.40/12,167,472.30 = 2,128,543.40/x
  3. Step 3: Cross multiply
    8,112,175.40x = 12,167,472.30 × 2,128,543.40
  4. Step 4: Simplify right side
    8,112,175.40x = 25,898,992,858,847.82
  5. Step 5: Solve for x
    x = 25,898,992,858,847.82/8,112,175.40
  6. Step 6: Final answer
    x = 3,192,607.60

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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.