Home / 386,208,581.80-579,312,872.70-343,882,258.60

Finding the Fourth Proportional to 386,208,581.80, 579,312,872.70 and 343,882,258.60

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Solution

The fourth proportional to 386,208,581.80, 579,312,872.70 and 343,882,258.60 is: 515,823,387.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,208,581.80 : 579,312,872.70 = 343,882,258.60 : x
  2. Step 2: Convert to fraction form
    386,208,581.80/579,312,872.70 = 343,882,258.60/x
  3. Step 3: Cross multiply
    386,208,581.80x = 579,312,872.70 × 343,882,258.60
  4. Step 4: Simplify right side
    386,208,581.80x = 199,215,419,100,130,304
  5. Step 5: Solve for x
    x = 199,215,419,100,130,304/386,208,581.80
  6. Step 6: Final answer
    x = 515,823,387.90

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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.