Home / 288,587,235.30-398,255,487.58-156,432,620.58

Finding the Fourth Proportional to 288,587,235.30, 398,255,487.58 and 156,432,620.58

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Solution

The fourth proportional to 288,587,235.30, 398,255,487.58 and 156,432,620.58 is: 215,879,782.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,587,235.30 : 398,255,487.58 = 156,432,620.58 : x
  2. Step 2: Convert to fraction form
    288,587,235.30/398,255,487.58 = 156,432,620.58/x
  3. Step 3: Cross multiply
    288,587,235.30x = 398,255,487.58 × 156,432,620.58
  4. Step 4: Simplify right side
    288,587,235.30x = 62,300,149,582,505,048
  5. Step 5: Solve for x
    x = 62,300,149,582,505,048/288,587,235.30
  6. Step 6: Final answer
    x = 215,879,782.48

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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.