Home / 12,340,405.38-18,517,695.93-9,637,142.16

Finding the Fourth Proportional to 12,340,405.38, 18,517,695.93 and 9,637,142.16

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Solution

The fourth proportional to 12,340,405.38, 18,517,695.93 and 9,637,142.16 is: 14,461,248.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,340,405.38 : 18,517,695.93 = 9,637,142.16 : x
  2. Step 2: Convert to fraction form
    12,340,405.38/18,517,695.93 = 9,637,142.16/x
  3. Step 3: Cross multiply
    12,340,405.38x = 18,517,695.93 × 9,637,142.16
  4. Step 4: Simplify right side
    12,340,405.38x = 178,457,668,222,504.78
  5. Step 5: Solve for x
    x = 178,457,668,222,504.78/12,340,405.38
  6. Step 6: Final answer
    x = 14,461,248.45

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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.