Home / 743,251,011.40-1,114,876,517.10-258,576,819.40

Finding the Fourth Proportional to 743,251,011.40, 1,114,876,517.10 and 258,576,819.40

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Solution

The fourth proportional to 743,251,011.40, 1,114,876,517.10 and 258,576,819.40 is: 387,865,229.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,251,011.40 : 1,114,876,517.10 = 258,576,819.40 : x
  2. Step 2: Convert to fraction form
    743,251,011.40/1,114,876,517.10 = 258,576,819.40/x
  3. Step 3: Cross multiply
    743,251,011.40x = 1,114,876,517.10 × 258,576,819.40
  4. Step 4: Simplify right side
    743,251,011.40x = 288,281,223,815,467,712
  5. Step 5: Solve for x
    x = 288,281,223,815,467,712/743,251,011.40
  6. Step 6: Final answer
    x = 387,865,229.10

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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.