Home / 13,313,114.64-18,368,926.80-9,181,825.20

Finding the Fourth Proportional to 13,313,114.64, 18,368,926.80 and 9,181,825.20

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Solution

The fourth proportional to 13,313,114.64, 18,368,926.80 and 9,181,825.20 is: 12,668,731.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313,114.64 : 18,368,926.80 = 9,181,825.20 : x
  2. Step 2: Convert to fraction form
    13,313,114.64/18,368,926.80 = 9,181,825.20/x
  3. Step 3: Cross multiply
    13,313,114.64x = 18,368,926.80 × 9,181,825.20
  4. Step 4: Simplify right side
    13,313,114.64x = 168,660,274,989,195.34
  5. Step 5: Solve for x
    x = 168,660,274,989,195.34/13,313,114.64
  6. Step 6: Final answer
    x = 12,668,731.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.