Home / 423,150,879.26-634,436,551.10-215,487,312.32

Finding the Fourth Proportional to 423,150,879.26, 634,436,551.10 and 215,487,312.32

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Solution

The fourth proportional to 423,150,879.26, 634,436,551.10 and 215,487,312.32 is: 323,083,405.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,150,879.26 : 634,436,551.10 = 215,487,312.32 : x
  2. Step 2: Convert to fraction form
    423,150,879.26/634,436,551.10 = 215,487,312.32/x
  3. Step 3: Cross multiply
    423,150,879.26x = 634,436,551.10 × 215,487,312.32
  4. Step 4: Simplify right side
    423,150,879.26x = 136,713,027,234,109,344
  5. Step 5: Solve for x
    x = 136,713,027,234,109,344/423,150,879.26
  6. Step 6: Final answer
    x = 323,083,405.79

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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.