Home / 8,520,689.10-12,781,098.45-2,840,904.30

Finding the Fourth Proportional to 8,520,689.10, 12,781,098.45 and 2,840,904.30

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Solution

The fourth proportional to 8,520,689.10, 12,781,098.45 and 2,840,904.30 is: 4,261,378.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520,689.10 : 12,781,098.45 = 2,840,904.30 : x
  2. Step 2: Convert to fraction form
    8,520,689.10/12,781,098.45 = 2,840,904.30/x
  3. Step 3: Cross multiply
    8,520,689.10x = 12,781,098.45 × 2,840,904.30
  4. Step 4: Simplify right side
    8,520,689.10x = 36,309,877,545,328.33
  5. Step 5: Solve for x
    x = 36,309,877,545,328.33/8,520,689.10
  6. Step 6: Final answer
    x = 4,261,378.06

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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.