Home / 149,883,728.20-206,776,208.52-100,340,064.10

Finding the Fourth Proportional to 149,883,728.20, 206,776,208.52 and 100,340,064.10

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Solution

The fourth proportional to 149,883,728.20, 206,776,208.52 and 100,340,064.10 is: 138,426,887.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,883,728.20 : 206,776,208.52 = 100,340,064.10 : x
  2. Step 2: Convert to fraction form
    149,883,728.20/206,776,208.52 = 100,340,064.10/x
  3. Step 3: Cross multiply
    149,883,728.20x = 206,776,208.52 × 100,340,064.10
  4. Step 4: Simplify right side
    149,883,728.20x = 20,747,938,017,251,764
  5. Step 5: Solve for x
    x = 20,747,938,017,251,764/149,883,728.20
  6. Step 6: Final answer
    x = 138,426,887.74

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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.