Home / 8,519,295.80-12,778,943.70-5,328,025.40

Finding the Fourth Proportional to 8,519,295.80, 12,778,943.70 and 5,328,025.40

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Solution

The fourth proportional to 8,519,295.80, 12,778,943.70 and 5,328,025.40 is: 7,992,038.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,519,295.80 : 12,778,943.70 = 5,328,025.40 : x
  2. Step 2: Convert to fraction form
    8,519,295.80/12,778,943.70 = 5,328,025.40/x
  3. Step 3: Cross multiply
    8,519,295.80x = 12,778,943.70 × 5,328,025.40
  4. Step 4: Simplify right side
    8,519,295.80x = 68,086,536,618,769.98
  5. Step 5: Solve for x
    x = 68,086,536,618,769.98/8,519,295.80
  6. Step 6: Final answer
    x = 7,992,038.10

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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.