Home / 143,752,422.40-215,628,633.60-139,973,286.40

Finding the Fourth Proportional to 143,752,422.40, 215,628,633.60 and 139,973,286.40

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Solution

The fourth proportional to 143,752,422.40, 215,628,633.60 and 139,973,286.40 is: 209,959,929.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,752,422.40 : 215,628,633.60 = 139,973,286.40 : x
  2. Step 2: Convert to fraction form
    143,752,422.40/215,628,633.60 = 139,973,286.40/x
  3. Step 3: Cross multiply
    143,752,422.40x = 215,628,633.60 × 139,973,286.40
  4. Step 4: Simplify right side
    143,752,422.40x = 30,182,248,486,933,464
  5. Step 5: Solve for x
    x = 30,182,248,486,933,464/143,752,422.40
  6. Step 6: Final answer
    x = 209,959,929.60

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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.