Home / 208,188,901.20-312,283,351.80-78,800,732.40

Finding the Fourth Proportional to 208,188,901.20, 312,283,351.80 and 78,800,732.40

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Solution

The fourth proportional to 208,188,901.20, 312,283,351.80 and 78,800,732.40 is: 118,201,098.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,188,901.20 : 312,283,351.80 = 78,800,732.40 : x
  2. Step 2: Convert to fraction form
    208,188,901.20/312,283,351.80 = 78,800,732.40/x
  3. Step 3: Cross multiply
    208,188,901.20x = 312,283,351.80 × 78,800,732.40
  4. Step 4: Simplify right side
    208,188,901.20x = 24,608,156,838,166,860
  5. Step 5: Solve for x
    x = 24,608,156,838,166,860/208,188,901.20
  6. Step 6: Final answer
    x = 118,201,098.60

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1.5x scale

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.