Home / 10,787,563.20-16,181,344.80-9,966,417.60

Finding the Fourth Proportional to 10,787,563.20, 16,181,344.80 and 9,966,417.60

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Solution

The fourth proportional to 10,787,563.20, 16,181,344.80 and 9,966,417.60 is: 14,949,626.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,787,563.20 : 16,181,344.80 = 9,966,417.60 : x
  2. Step 2: Convert to fraction form
    10,787,563.20/16,181,344.80 = 9,966,417.60/x
  3. Step 3: Cross multiply
    10,787,563.20x = 16,181,344.80 × 9,966,417.60
  4. Step 4: Simplify right side
    10,787,563.20x = 161,270,039,606,388.47
  5. Step 5: Solve for x
    x = 161,270,039,606,388.47/10,787,563.20
  6. Step 6: Final answer
    x = 14,949,626.40

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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.