Home / 1,988,263,568.76-2,981,917,056.21-608,090,034.12

Finding the Fourth Proportional to 1,988,263,568.76, 2,981,917,056.21 and 608,090,034.12

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Solution

The fourth proportional to 1,988,263,568.76, 2,981,917,056.21 and 608,090,034.12 is: 911,988,768.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,263,568.76 : 2,981,917,056.21 = 608,090,034.12 : x
  2. Step 2: Convert to fraction form
    1,988,263,568.76/2,981,917,056.21 = 608,090,034.12/x
  3. Step 3: Cross multiply
    1,988,263,568.76x = 2,981,917,056.21 × 608,090,034.12
  4. Step 4: Simplify right side
    1,988,263,568.76x = 1,813,274,044,453,748,992
  5. Step 5: Solve for x
    x = 1,813,274,044,453,748,992/1,988,263,568.76
  6. Step 6: Final answer
    x = 911,988,768.97

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Double scale
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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.