Home / 122,168,882.21-168,647,404.32-72,625,294.98

Finding the Fourth Proportional to 122,168,882.21, 168,647,404.32 and 72,625,294.98

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Solution

The fourth proportional to 122,168,882.21, 168,647,404.32 and 72,625,294.98 is: 100,255,214.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,168,882.21 : 168,647,404.32 = 72,625,294.98 : x
  2. Step 2: Convert to fraction form
    122,168,882.21/168,647,404.32 = 72,625,294.98/x
  3. Step 3: Cross multiply
    122,168,882.21x = 168,647,404.32 × 72,625,294.98
  4. Step 4: Simplify right side
    122,168,882.21x = 12,248,067,486,351,326
  5. Step 5: Solve for x
    x = 12,248,067,486,351,326/122,168,882.21
  6. Step 6: Final answer
    x = 100,255,214.46

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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.