Home / 81,466,279.40-122,039,986.80-49,021,806.35

Finding the Fourth Proportional to 81,466,279.40, 122,039,986.80 and 49,021,806.35

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Solution

The fourth proportional to 81,466,279.40, 122,039,986.80 and 49,021,806.35 is: 73,436,772.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,466,279.40 : 122,039,986.80 = 49,021,806.35 : x
  2. Step 2: Convert to fraction form
    81,466,279.40/122,039,986.80 = 49,021,806.35/x
  3. Step 3: Cross multiply
    81,466,279.40x = 122,039,986.80 × 49,021,806.35
  4. Step 4: Simplify right side
    81,466,279.40x = 5,982,620,599,866,156
  5. Step 5: Solve for x
    x = 5,982,620,599,866,156/81,466,279.40
  6. Step 6: Final answer
    x = 73,436,772.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.