Home / 81,569,904.80-122,354,857.20-47,085,288.80

Finding the Fourth Proportional to 81,569,904.80, 122,354,857.20 and 47,085,288.80

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Solution

The fourth proportional to 81,569,904.80, 122,354,857.20 and 47,085,288.80 is: 70,627,933.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,569,904.80 : 122,354,857.20 = 47,085,288.80 : x
  2. Step 2: Convert to fraction form
    81,569,904.80/122,354,857.20 = 47,085,288.80/x
  3. Step 3: Cross multiply
    81,569,904.80x = 122,354,857.20 × 47,085,288.80
  4. Step 4: Simplify right side
    81,569,904.80x = 5,761,113,787,344,759
  5. Step 5: Solve for x
    x = 5,761,113,787,344,759/81,569,904.80
  6. Step 6: Final answer
    x = 70,627,933.20

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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.