Home / 127,353,550.04-190,835,470.78-85,700,170.80

Finding the Fourth Proportional to 127,353,550.04, 190,835,470.78 and 85,700,170.80

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Solution

The fourth proportional to 127,353,550.04, 190,835,470.78 and 85,700,170.80 is: 128,419,132.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,353,550.04 : 190,835,470.78 = 85,700,170.80 : x
  2. Step 2: Convert to fraction form
    127,353,550.04/190,835,470.78 = 85,700,170.80/x
  3. Step 3: Cross multiply
    127,353,550.04x = 190,835,470.78 × 85,700,170.80
  4. Step 4: Simplify right side
    127,353,550.04x = 16,354,632,440,544,408
  5. Step 5: Solve for x
    x = 16,354,632,440,544,408/127,353,550.04
  6. Step 6: Final answer
    x = 128,419,132.69

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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.