Home / 522,162,854.40-720,598,329.60-287,219,568

Finding the Fourth Proportional to 522,162,854.40, 720,598,329.60 and 287,219,568

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Solution

The fourth proportional to 522,162,854.40, 720,598,329.60 and 287,219,568 is: 396,370,479.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,162,854.40 : 720,598,329.60 = 287,219,568 : x
  2. Step 2: Convert to fraction form
    522,162,854.40/720,598,329.60 = 287,219,568/x
  3. Step 3: Cross multiply
    522,162,854.40x = 720,598,329.60 × 287,219,568
  4. Step 4: Simplify right side
    522,162,854.40x = 206,969,940,929,233,632
  5. Step 5: Solve for x
    x = 206,969,940,929,233,632/522,162,854.40
  6. Step 6: Final answer
    x = 396,370,479.41

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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.