Home / 748,865,408.20-1,123,298,112.30-727,342,047.70

Finding the Fourth Proportional to 748,865,408.20, 1,123,298,112.30 and 727,342,047.70

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Solution

The fourth proportional to 748,865,408.20, 1,123,298,112.30 and 727,342,047.70 is: 1,091,013,071.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,865,408.20 : 1,123,298,112.30 = 727,342,047.70 : x
  2. Step 2: Convert to fraction form
    748,865,408.20/1,123,298,112.30 = 727,342,047.70/x
  3. Step 3: Cross multiply
    748,865,408.20x = 1,123,298,112.30 × 727,342,047.70
  4. Step 4: Simplify right side
    748,865,408.20x = 817,021,949,177,826,560
  5. Step 5: Solve for x
    x = 817,021,949,177,826,560/748,865,408.20
  6. Step 6: Final answer
    x = 1,091,013,071.55

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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.