Home / 12,659,328,045.45-18,988,992,068.18-8,741,119,840.65

Finding the Fourth Proportional to 12,659,328,045.45, 18,988,992,068.18 and 8,741,119,840.65

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Solution

The fourth proportional to 12,659,328,045.45, 18,988,992,068.18 and 8,741,119,840.65 is: 13,111,679,760.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,659,328,045.45 : 18,988,992,068.18 = 8,741,119,840.65 : x
  2. Step 2: Convert to fraction form
    12,659,328,045.45/18,988,992,068.18 = 8,741,119,840.65/x
  3. Step 3: Cross multiply
    12,659,328,045.45x = 18,988,992,068.18 × 8,741,119,840.65
  4. Step 4: Simplify right side
    12,659,328,045.45x = 165,985,055,321,069,944,832
  5. Step 5: Solve for x
    x = 165,985,055,321,069,944,832/12,659,328,045.45
  6. Step 6: Final answer
    x = 13,111,679,760.98

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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.