Home / 8,231,428.80-12,312,151.20-7,384,622.40

Finding the Fourth Proportional to 8,231,428.80, 12,312,151.20 and 7,384,622.40

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Solution

The fourth proportional to 8,231,428.80, 12,312,151.20 and 7,384,622.40 is: 11,045,541.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231,428.80 : 12,312,151.20 = 7,384,622.40 : x
  2. Step 2: Convert to fraction form
    8,231,428.80/12,312,151.20 = 7,384,622.40/x
  3. Step 3: Cross multiply
    8,231,428.80x = 12,312,151.20 × 7,384,622.40
  4. Step 4: Simplify right side
    8,231,428.80x = 90,920,587,543,706.88
  5. Step 5: Solve for x
    x = 90,920,587,543,706.88/8,231,428.80
  6. Step 6: Final answer
    x = 11,045,541.39

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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.