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Finding the Fourth Proportional to 8,913,855.29, 13,366,889.32 and 3,154,674.80

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Solution

The fourth proportional to 8,913,855.29, 13,366,889.32 and 3,154,674.80 is: 4,730,634.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,913,855.29 : 13,366,889.32 = 3,154,674.80 : x
  2. Step 2: Convert to fraction form
    8,913,855.29/13,366,889.32 = 3,154,674.80/x
  3. Step 3: Cross multiply
    8,913,855.29x = 13,366,889.32 × 3,154,674.80
  4. Step 4: Simplify right side
    8,913,855.29x = 42,168,188,817,472.01
  5. Step 5: Solve for x
    x = 42,168,188,817,472.01/8,913,855.29
  6. Step 6: Final answer
    x = 4,730,634.22

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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.