Home / 518,256,891.38-715,199,268.92-295,235,267.60

Finding the Fourth Proportional to 518,256,891.38, 715,199,268.92 and 295,235,267.60

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Solution

The fourth proportional to 518,256,891.38, 715,199,268.92 and 295,235,267.60 is: 407,427,380.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,256,891.38 : 715,199,268.92 = 295,235,267.60 : x
  2. Step 2: Convert to fraction form
    518,256,891.38/715,199,268.92 = 295,235,267.60/x
  3. Step 3: Cross multiply
    518,256,891.38x = 715,199,268.92 × 295,235,267.60
  4. Step 4: Simplify right side
    518,256,891.38x = 211,152,047,541,868,384
  5. Step 5: Solve for x
    x = 211,152,047,541,868,384/518,256,891.38
  6. Step 6: Final answer
    x = 407,427,380.24

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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.