Home / 386,144,940.30-579,217,410.45-343,818,617.10

Finding the Fourth Proportional to 386,144,940.30, 579,217,410.45 and 343,818,617.10

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Solution

The fourth proportional to 386,144,940.30, 579,217,410.45 and 343,818,617.10 is: 515,727,925.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,144,940.30 : 579,217,410.45 = 343,818,617.10 : x
  2. Step 2: Convert to fraction form
    386,144,940.30/579,217,410.45 = 343,818,617.10/x
  3. Step 3: Cross multiply
    386,144,940.30x = 579,217,410.45 × 343,818,617.10
  4. Step 4: Simplify right side
    386,144,940.30x = 199,145,729,061,162,112
  5. Step 5: Solve for x
    x = 199,145,729,061,162,112/386,144,940.30
  6. Step 6: Final answer
    x = 515,727,925.65

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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.