Home / 139,008,045.15-208,512,067.73-88,115,680.35

Finding the Fourth Proportional to 139,008,045.15, 208,512,067.73 and 88,115,680.35

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Solution

The fourth proportional to 139,008,045.15, 208,512,067.73 and 88,115,680.35 is: 132,173,520.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,008,045.15 : 208,512,067.73 = 88,115,680.35 : x
  2. Step 2: Convert to fraction form
    139,008,045.15/208,512,067.73 = 88,115,680.35/x
  3. Step 3: Cross multiply
    139,008,045.15x = 208,512,067.73 × 88,115,680.35
  4. Step 4: Simplify right side
    139,008,045.15x = 18,373,182,708,773,648
  5. Step 5: Solve for x
    x = 18,373,182,708,773,648/139,008,045.15
  6. Step 6: Final answer
    x = 132,173,520.53

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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.