Home / 221,805,470.52-306,071,007.90-122,684,084.54

Finding the Fourth Proportional to 221,805,470.52, 306,071,007.90 and 122,684,084.54

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Solution

The fourth proportional to 221,805,470.52, 306,071,007.90 and 122,684,084.54 is: 169,292,674.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,805,470.52 : 306,071,007.90 = 122,684,084.54 : x
  2. Step 2: Convert to fraction form
    221,805,470.52/306,071,007.90 = 122,684,084.54/x
  3. Step 3: Cross multiply
    221,805,470.52x = 306,071,007.90 × 122,684,084.54
  4. Step 4: Simplify right side
    221,805,470.52x = 37,550,041,408,446,608
  5. Step 5: Solve for x
    x = 37,550,041,408,446,608/221,805,470.52
  6. Step 6: Final answer
    x = 169,292,674.88

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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.