Home / 297,206,890.80-445,810,336.20-78,856,810.80

Finding the Fourth Proportional to 297,206,890.80, 445,810,336.20 and 78,856,810.80

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Solution

The fourth proportional to 297,206,890.80, 445,810,336.20 and 78,856,810.80 is: 118,285,216.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,206,890.80 : 445,810,336.20 = 78,856,810.80 : x
  2. Step 2: Convert to fraction form
    297,206,890.80/445,810,336.20 = 78,856,810.80/x
  3. Step 3: Cross multiply
    297,206,890.80x = 445,810,336.20 × 78,856,810.80
  4. Step 4: Simplify right side
    297,206,890.80x = 35,155,181,334,407,788
  5. Step 5: Solve for x
    x = 35,155,181,334,407,788/297,206,890.80
  6. Step 6: Final answer
    x = 118,285,216.20

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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.