Home / 261,120,926.15-360,335,517.05-143,638,807.22

Finding the Fourth Proportional to 261,120,926.15, 360,335,517.05 and 143,638,807.22

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Solution

The fourth proportional to 261,120,926.15, 360,335,517.05 and 143,638,807.22 is: 198,215,304.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,120,926.15 : 360,335,517.05 = 143,638,807.22 : x
  2. Step 2: Convert to fraction form
    261,120,926.15/360,335,517.05 = 143,638,807.22/x
  3. Step 3: Cross multiply
    261,120,926.15x = 360,335,517.05 × 143,638,807.22
  4. Step 4: Simplify right side
    261,120,926.15x = 51,758,163,866,621,392
  5. Step 5: Solve for x
    x = 51,758,163,866,621,392/261,120,926.15
  6. Step 6: Final answer
    x = 198,215,304.42

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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.