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Finding the Fourth Proportional to 8,065,807.80, 12,098,711.70 and 7,746,943.20

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Solution

The fourth proportional to 8,065,807.80, 12,098,711.70 and 7,746,943.20 is: 11,620,414.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,065,807.80 : 12,098,711.70 = 7,746,943.20 : x
  2. Step 2: Convert to fraction form
    8,065,807.80/12,098,711.70 = 7,746,943.20/x
  3. Step 3: Cross multiply
    8,065,807.80x = 12,098,711.70 × 7,746,943.20
  4. Step 4: Simplify right side
    8,065,807.80x = 93,728,032,333,075.44
  5. Step 5: Solve for x
    x = 93,728,032,333,075.44/8,065,807.80
  6. Step 6: Final answer
    x = 11,620,414.80

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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.