Home / 1,668,591,929.38-2,301,609,467.42-989,928,397.84

Finding the Fourth Proportional to 1,668,591,929.38, 2,301,609,467.42 and 989,928,397.84

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Solution

The fourth proportional to 1,668,591,929.38, 2,301,609,467.42 and 989,928,397.84 is: 1,365,479,799.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668,591,929.38 : 2,301,609,467.42 = 989,928,397.84 : x
  2. Step 2: Convert to fraction form
    1,668,591,929.38/2,301,609,467.42 = 989,928,397.84/x
  3. Step 3: Cross multiply
    1,668,591,929.38x = 2,301,609,467.42 × 989,928,397.84
  4. Step 4: Simplify right side
    1,668,591,929.38x = 2,278,428,572,536,456,448
  5. Step 5: Solve for x
    x = 2,278,428,572,536,456,448/1,668,591,929.38
  6. Step 6: Final answer
    x = 1,365,479,799.12

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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.