Home / 490,564,069.50-735,955,478.82-140,782,870.86

Finding the Fourth Proportional to 490,564,069.50, 735,955,478.82 and 140,782,870.86

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Solution

The fourth proportional to 490,564,069.50, 735,955,478.82 and 140,782,870.86 is: 211,205,694.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,564,069.50 : 735,955,478.82 = 140,782,870.86 : x
  2. Step 2: Convert to fraction form
    490,564,069.50/735,955,478.82 = 140,782,870.86/x
  3. Step 3: Cross multiply
    490,564,069.50x = 735,955,478.82 × 140,782,870.86
  4. Step 4: Simplify right side
    490,564,069.50x = 103,609,925,133,425,536
  5. Step 5: Solve for x
    x = 103,609,925,133,425,536/490,564,069.50
  6. Step 6: Final answer
    x = 211,205,694.78

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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.