Home / 121,400,643.20-182,100,964.80-108,646,059.20

Finding the Fourth Proportional to 121,400,643.20, 182,100,964.80 and 108,646,059.20

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Solution

The fourth proportional to 121,400,643.20, 182,100,964.80 and 108,646,059.20 is: 162,969,088.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,400,643.20 : 182,100,964.80 = 108,646,059.20 : x
  2. Step 2: Convert to fraction form
    121,400,643.20/182,100,964.80 = 108,646,059.20/x
  3. Step 3: Cross multiply
    121,400,643.20x = 182,100,964.80 × 108,646,059.20
  4. Step 4: Simplify right side
    121,400,643.20x = 19,784,552,202,037,916
  5. Step 5: Solve for x
    x = 19,784,552,202,037,916/121,400,643.20
  6. Step 6: Final answer
    x = 162,969,088.80

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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.