Home / 1,238,922,310.92-1,857,704,209.24-491,180,589.34

Finding the Fourth Proportional to 1,238,922,310.92, 1,857,704,209.24 and 491,180,589.34

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Solution

The fourth proportional to 1,238,922,310.92, 1,857,704,209.24 and 491,180,589.34 is: 736,501,587.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,922,310.92 : 1,857,704,209.24 = 491,180,589.34 : x
  2. Step 2: Convert to fraction form
    1,238,922,310.92/1,857,704,209.24 = 491,180,589.34/x
  3. Step 3: Cross multiply
    1,238,922,310.92x = 1,857,704,209.24 × 491,180,589.34
  4. Step 4: Simplify right side
    1,238,922,310.92x = 912,468,248,320,710,912
  5. Step 5: Solve for x
    x = 912,468,248,320,710,912/1,238,922,310.92
  6. Step 6: Final answer
    x = 736,501,587.13

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Double scale
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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.