Home / 12,131,328,051.30-18,196,992,076.95-10,172,223,948.90

Finding the Fourth Proportional to 12,131,328,051.30, 18,196,992,076.95 and 10,172,223,948.90

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Solution

The fourth proportional to 12,131,328,051.30, 18,196,992,076.95 and 10,172,223,948.90 is: 15,258,335,923.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,131,328,051.30 : 18,196,992,076.95 = 10,172,223,948.90 : x
  2. Step 2: Convert to fraction form
    12,131,328,051.30/18,196,992,076.95 = 10,172,223,948.90/x
  3. Step 3: Cross multiply
    12,131,328,051.30x = 18,196,992,076.95 × 10,172,223,948.90
  4. Step 4: Simplify right side
    12,131,328,051.30x = 185,103,878,603,094,327,296
  5. Step 5: Solve for x
    x = 185,103,878,603,094,327,296/12,131,328,051.30
  6. Step 6: Final answer
    x = 15,258,335,923.35

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Double scale
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1.5x scale

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.