Home / 13,186,718,114.40-19,780,077,171.60-7,956,541,512.90

Finding the Fourth Proportional to 13,186,718,114.40, 19,780,077,171.60 and 7,956,541,512.90

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Solution

The fourth proportional to 13,186,718,114.40, 19,780,077,171.60 and 7,956,541,512.90 is: 11,934,812,269.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,186,718,114.40 : 19,780,077,171.60 = 7,956,541,512.90 : x
  2. Step 2: Convert to fraction form
    13,186,718,114.40/19,780,077,171.60 = 7,956,541,512.90/x
  3. Step 3: Cross multiply
    13,186,718,114.40x = 19,780,077,171.60 × 7,956,541,512.90
  4. Step 4: Simplify right side
    13,186,718,114.40x = 157,381,005,144,201,003,008
  5. Step 5: Solve for x
    x = 157,381,005,144,201,003,008/13,186,718,114.40
  6. Step 6: Final answer
    x = 11,934,812,269.35

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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.