Home / 216,188,520.89-298,361,498.76-123,382,913.45

Finding the Fourth Proportional to 216,188,520.89, 298,361,498.76 and 123,382,913.45

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Solution

The fourth proportional to 216,188,520.89, 298,361,498.76 and 123,382,913.45 is: 170,280,599.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,188,520.89 : 298,361,498.76 = 123,382,913.45 : x
  2. Step 2: Convert to fraction form
    216,188,520.89/298,361,498.76 = 123,382,913.45/x
  3. Step 3: Cross multiply
    216,188,520.89x = 298,361,498.76 × 123,382,913.45
  4. Step 4: Simplify right side
    216,188,520.89x = 36,812,710,976,825,552
  5. Step 5: Solve for x
    x = 36,812,710,976,825,552/216,188,520.89
  6. Step 6: Final answer
    x = 170,280,599.66

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1.5x scale

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.