Home / 1,248,073,731.91-1,722,395,890.58-691,156,778.97

Finding the Fourth Proportional to 1,248,073,731.91, 1,722,395,890.58 and 691,156,778.97

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Solution

The fourth proportional to 1,248,073,731.91, 1,722,395,890.58 and 691,156,778.97 is: 953,826,336.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,073,731.91 : 1,722,395,890.58 = 691,156,778.97 : x
  2. Step 2: Convert to fraction form
    1,248,073,731.91/1,722,395,890.58 = 691,156,778.97/x
  3. Step 3: Cross multiply
    1,248,073,731.91x = 1,722,395,890.58 × 691,156,778.97
  4. Step 4: Simplify right side
    1,248,073,731.91x = 1,190,445,595,844,437,248
  5. Step 5: Solve for x
    x = 1,190,445,595,844,437,248/1,248,073,731.91
  6. Step 6: Final answer
    x = 953,826,336.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.