Home / 12,131,328,052.30-18,196,992,078.45-10,172,223,949.90

Finding the Fourth Proportional to 12,131,328,052.30, 18,196,992,078.45 and 10,172,223,949.90

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Solution

The fourth proportional to 12,131,328,052.30, 18,196,992,078.45 and 10,172,223,949.90 is: 15,258,335,924.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,131,328,052.30 : 18,196,992,078.45 = 10,172,223,949.90 : x
  2. Step 2: Convert to fraction form
    12,131,328,052.30/18,196,992,078.45 = 10,172,223,949.90/x
  3. Step 3: Cross multiply
    12,131,328,052.30x = 18,196,992,078.45 × 10,172,223,949.90
  4. Step 4: Simplify right side
    12,131,328,052.30x = 185,103,878,636,549,668,864
  5. Step 5: Solve for x
    x = 185,103,878,636,549,668,864/12,131,328,052.30
  6. Step 6: Final answer
    x = 15,258,335,924.85

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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.