Home / 9,966,428.80-14,949,643.20-8,372,105.80

Finding the Fourth Proportional to 9,966,428.80, 14,949,643.20 and 8,372,105.80

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Solution

The fourth proportional to 9,966,428.80, 14,949,643.20 and 8,372,105.80 is: 12,558,158.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,966,428.80 : 14,949,643.20 = 8,372,105.80 : x
  2. Step 2: Convert to fraction form
    9,966,428.80/14,949,643.20 = 8,372,105.80/x
  3. Step 3: Cross multiply
    9,966,428.80x = 14,949,643.20 × 8,372,105.80
  4. Step 4: Simplify right side
    9,966,428.80x = 125,159,994,542,650.55
  5. Step 5: Solve for x
    x = 125,159,994,542,650.55/9,966,428.80
  6. Step 6: Final answer
    x = 12,558,158.70

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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.