Home / 288,586,432.75-398,238,603.90-156,424,591.69

Finding the Fourth Proportional to 288,586,432.75, 398,238,603.90 and 156,424,591.69

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Solution

The fourth proportional to 288,586,432.75, 398,238,603.90 and 156,424,591.69 is: 215,860,151.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,586,432.75 : 398,238,603.90 = 156,424,591.69 : x
  2. Step 2: Convert to fraction form
    288,586,432.75/398,238,603.90 = 156,424,591.69/x
  3. Step 3: Cross multiply
    288,586,432.75x = 398,238,603.90 × 156,424,591.69
  4. Step 4: Simplify right side
    288,586,432.75x = 62,294,311,010,253,136
  5. Step 5: Solve for x
    x = 62,294,311,010,253,136/288,586,432.75
  6. Step 6: Final answer
    x = 215,860,151.21

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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.