Home / 127,765,970.40-191,397,013.20-73,850,296.80

Finding the Fourth Proportional to 127,765,970.40, 191,397,013.20 and 73,850,296.80

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Solution

The fourth proportional to 127,765,970.40, 191,397,013.20 and 73,850,296.80 is: 110,629,819.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,765,970.40 : 191,397,013.20 = 73,850,296.80 : x
  2. Step 2: Convert to fraction form
    127,765,970.40/191,397,013.20 = 73,850,296.80/x
  3. Step 3: Cross multiply
    127,765,970.40x = 191,397,013.20 × 73,850,296.80
  4. Step 4: Simplify right side
    127,765,970.40x = 14,134,726,231,453,516
  5. Step 5: Solve for x
    x = 14,134,726,231,453,516/127,765,970.40
  6. Step 6: Final answer
    x = 110,629,819.40

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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.