Home / 839,808,217.40-1,259,712,326.10-257,537,838.20

Finding the Fourth Proportional to 839,808,217.40, 1,259,712,326.10 and 257,537,838.20

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Solution

The fourth proportional to 839,808,217.40, 1,259,712,326.10 and 257,537,838.20 is: 386,306,757.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,808,217.40 : 1,259,712,326.10 = 257,537,838.20 : x
  2. Step 2: Convert to fraction form
    839,808,217.40/1,259,712,326.10 = 257,537,838.20/x
  3. Step 3: Cross multiply
    839,808,217.40x = 1,259,712,326.10 × 257,537,838.20
  4. Step 4: Simplify right side
    839,808,217.40x = 324,423,589,217,687,424
  5. Step 5: Solve for x
    x = 324,423,589,217,687,424/839,808,217.40
  6. Step 6: Final answer
    x = 386,306,757.30

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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.