Home / 748,865,416.11-1,123,451,328.65-257,514,873.53

Finding the Fourth Proportional to 748,865,416.11, 1,123,451,328.65 and 257,514,873.53

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Solution

The fourth proportional to 748,865,416.11, 1,123,451,328.65 and 257,514,873.53 is: 386,324,993.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,865,416.11 : 1,123,451,328.65 = 257,514,873.53 : x
  2. Step 2: Convert to fraction form
    748,865,416.11/1,123,451,328.65 = 257,514,873.53/x
  3. Step 3: Cross multiply
    748,865,416.11x = 1,123,451,328.65 × 257,514,873.53
  4. Step 4: Simplify right side
    748,865,416.11x = 289,305,426,817,199,616
  5. Step 5: Solve for x
    x = 289,305,426,817,199,616/748,865,416.11
  6. Step 6: Final answer
    x = 386,324,993.24

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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.