Home / 288,586,431.75-398,238,602.52-156,424,590.69

Finding the Fourth Proportional to 288,586,431.75, 398,238,602.52 and 156,424,590.69

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Solution

The fourth proportional to 288,586,431.75, 398,238,602.52 and 156,424,590.69 is: 215,860,149.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,586,431.75 : 398,238,602.52 = 156,424,590.69 : x
  2. Step 2: Convert to fraction form
    288,586,431.75/398,238,602.52 = 156,424,590.69/x
  3. Step 3: Cross multiply
    288,586,431.75x = 398,238,602.52 × 156,424,590.69
  4. Step 4: Simplify right side
    288,586,431.75x = 62,294,310,396,148,600
  5. Step 5: Solve for x
    x = 62,294,310,396,148,600/288,586,431.75
  6. Step 6: Final answer
    x = 215,860,149.83

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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.