Home / 100,500,427,540.32-138,696,044,114.16-57,680,568,071.52

Finding the Fourth Proportional to 100,500,427,540.32, 138,696,044,114.16 and 57,680,568,071.52

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Solution

The fourth proportional to 100,500,427,540.32, 138,696,044,114.16 and 57,680,568,071.52 is: 79,602,314,234.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,500,427,540.32 : 138,696,044,114.16 = 57,680,568,071.52 : x
  2. Step 2: Convert to fraction form
    100,500,427,540.32/138,696,044,114.16 = 57,680,568,071.52/x
  3. Step 3: Cross multiply
    100,500,427,540.32x = 138,696,044,114.16 × 57,680,568,071.52
  4. Step 4: Simplify right side
    100,500,427,540.32x = 8,000,066,613,777,346,330,624
  5. Step 5: Solve for x
    x = 8,000,066,613,777,346,330,624/100,500,427,540.32
  6. Step 6: Final answer
    x = 79,602,314,234.61

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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.