Home / 136,680,003,432.19-188,618,339,132.40-81,747,175,509.69

Finding the Fourth Proportional to 136,680,003,432.19, 188,618,339,132.40 and 81,747,175,509.69

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Solution

The fourth proportional to 136,680,003,432.19, 188,618,339,132.40 and 81,747,175,509.69 is: 112,811,062,966.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,680,003,432.19 : 188,618,339,132.40 = 81,747,175,509.69 : x
  2. Step 2: Convert to fraction form
    136,680,003,432.19/188,618,339,132.40 = 81,747,175,509.69/x
  3. Step 3: Cross multiply
    136,680,003,432.19x = 188,618,339,132.40 × 81,747,175,509.69
  4. Step 4: Simplify right side
    136,680,003,432.19x = 15,419,016,473,402,532,691,968
  5. Step 5: Solve for x
    x = 15,419,016,473,402,532,691,968/136,680,003,432.19
  6. Step 6: Final answer
    x = 112,811,062,966.15

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Double scale
Find fourth proportional to 136,680,003,433.19, 188,618,339,133.78 and 81,747,175,510.69
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.