Home / 127,856,647.80-191,809,854.90-55,073,287.80

Finding the Fourth Proportional to 127,856,647.80, 191,809,854.90 and 55,073,287.80

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Solution

The fourth proportional to 127,856,647.80, 191,809,854.90 and 55,073,287.80 is: 82,620,649.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,856,647.80 : 191,809,854.90 = 55,073,287.80 : x
  2. Step 2: Convert to fraction form
    127,856,647.80/191,809,854.90 = 55,073,287.80/x
  3. Step 3: Cross multiply
    127,856,647.80x = 191,809,854.90 × 55,073,287.80
  4. Step 4: Simplify right side
    127,856,647.80x = 10,563,599,341,783,940
  5. Step 5: Solve for x
    x = 10,563,599,341,783,940/127,856,647.80
  6. Step 6: Final answer
    x = 82,620,649.95

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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.