Home / 149,883,720-206,776,197.24-100,340,055.90

Finding the Fourth Proportional to 149,883,720, 206,776,197.24 and 100,340,055.90

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Solution

The fourth proportional to 149,883,720, 206,776,197.24 and 100,340,055.90 is: 138,426,876.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,883,720 : 206,776,197.24 = 100,340,055.90 : x
  2. Step 2: Convert to fraction form
    149,883,720/206,776,197.24 = 100,340,055.90/x
  3. Step 3: Cross multiply
    149,883,720x = 206,776,197.24 × 100,340,055.90
  4. Step 4: Simplify right side
    149,883,720x = 20,747,935,189,851,028
  5. Step 5: Solve for x
    x = 20,747,935,189,851,028/149,883,720
  6. Step 6: Final answer
    x = 138,426,876.45

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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.