Home / 287,976,900.26-397,407,865.59-162,555,495.86

Finding the Fourth Proportional to 287,976,900.26, 397,407,865.59 and 162,555,495.86

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Solution

The fourth proportional to 287,976,900.26, 397,407,865.59 and 162,555,495.86 is: 224,326,439.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,976,900.26 : 397,407,865.59 = 162,555,495.86 : x
  2. Step 2: Convert to fraction form
    287,976,900.26/397,407,865.59 = 162,555,495.86/x
  3. Step 3: Cross multiply
    287,976,900.26x = 397,407,865.59 × 162,555,495.86
  4. Step 4: Simplify right side
    287,976,900.26x = 64,600,832,647,659,632
  5. Step 5: Solve for x
    x = 64,600,832,647,659,632/287,976,900.26
  6. Step 6: Final answer
    x = 224,326,439.34

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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.