Home / 12,659,328,003.70-18,988,992,005.55-8,741,119,798.90

Finding the Fourth Proportional to 12,659,328,003.70, 18,988,992,005.55 and 8,741,119,798.90

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Solution

The fourth proportional to 12,659,328,003.70, 18,988,992,005.55 and 8,741,119,798.90 is: 13,111,679,698.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,659,328,003.70 : 18,988,992,005.55 = 8,741,119,798.90 : x
  2. Step 2: Convert to fraction form
    12,659,328,003.70/18,988,992,005.55 = 8,741,119,798.90/x
  3. Step 3: Cross multiply
    12,659,328,003.70x = 18,988,992,005.55 × 8,741,119,798.90
  4. Step 4: Simplify right side
    12,659,328,003.70x = 165,985,053,980,866,904,064
  5. Step 5: Solve for x
    x = 165,985,053,980,866,904,064/12,659,328,003.70
  6. Step 6: Final answer
    x = 13,111,679,698.35

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Double scale
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Similar ratio
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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.