Home / 265,981,123.20-398,971,684.80-254,643,715.20

Finding the Fourth Proportional to 265,981,123.20, 398,971,684.80 and 254,643,715.20

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Solution

The fourth proportional to 265,981,123.20, 398,971,684.80 and 254,643,715.20 is: 381,965,572.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,981,123.20 : 398,971,684.80 = 254,643,715.20 : x
  2. Step 2: Convert to fraction form
    265,981,123.20/398,971,684.80 = 254,643,715.20/x
  3. Step 3: Cross multiply
    265,981,123.20x = 398,971,684.80 × 254,643,715.20
  4. Step 4: Simplify right side
    265,981,123.20x = 101,595,632,077,075,360
  5. Step 5: Solve for x
    x = 101,595,632,077,075,360/265,981,123.20
  6. Step 6: Final answer
    x = 381,965,572.80

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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.