Home / 218,761,709.20-328,117,680.60-57,219,974.80

Finding the Fourth Proportional to 218,761,709.20, 328,117,680.60 and 57,219,974.80

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Solution

The fourth proportional to 218,761,709.20, 328,117,680.60 and 57,219,974.80 is: 85,823,453.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,761,709.20 : 328,117,680.60 = 57,219,974.80 : x
  2. Step 2: Convert to fraction form
    218,761,709.20/328,117,680.60 = 57,219,974.80/x
  3. Step 3: Cross multiply
    218,761,709.20x = 328,117,680.60 × 57,219,974.80
  4. Step 4: Simplify right side
    218,761,709.20x = 18,774,885,415,366,448
  5. Step 5: Solve for x
    x = 18,774,885,415,366,448/218,761,709.20
  6. Step 6: Final answer
    x = 85,823,453.67

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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.