Home / 85,212,859.20-127,819,288.80-52,901,246.40

Finding the Fourth Proportional to 85,212,859.20, 127,819,288.80 and 52,901,246.40

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Solution

The fourth proportional to 85,212,859.20, 127,819,288.80 and 52,901,246.40 is: 79,351,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,212,859.20 : 127,819,288.80 = 52,901,246.40 : x
  2. Step 2: Convert to fraction form
    85,212,859.20/127,819,288.80 = 52,901,246.40/x
  3. Step 3: Cross multiply
    85,212,859.20x = 127,819,288.80 × 52,901,246.40
  4. Step 4: Simplify right side
    85,212,859.20x = 6,761,799,691,481,560
  5. Step 5: Solve for x
    x = 6,761,799,691,481,560/85,212,859.20
  6. Step 6: Final answer
    x = 79,351,869.60

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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.