Home / 8,520,668.92-12,781,003.40-2,130,920.92

Finding the Fourth Proportional to 8,520,668.92, 12,781,003.40 and 2,130,920.92

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Solution

The fourth proportional to 8,520,668.92, 12,781,003.40 and 2,130,920.92 is: 3,196,381.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520,668.92 : 12,781,003.40 = 2,130,920.92 : x
  2. Step 2: Convert to fraction form
    8,520,668.92/12,781,003.40 = 2,130,920.92/x
  3. Step 3: Cross multiply
    8,520,668.92x = 12,781,003.40 × 2,130,920.92
  4. Step 4: Simplify right side
    8,520,668.92x = 27,235,307,523,651.13
  5. Step 5: Solve for x
    x = 27,235,307,523,651.13/8,520,668.92
  6. Step 6: Final answer
    x = 3,196,381.39

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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.