Home / 268,209,124.20-402,408,164.70-131,803,309.80

Finding the Fourth Proportional to 268,209,124.20, 402,408,164.70 and 131,803,309.80

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Solution

The fourth proportional to 268,209,124.20, 402,408,164.70 and 131,803,309.80 is: 197,751,393.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,209,124.20 : 402,408,164.70 = 131,803,309.80 : x
  2. Step 2: Convert to fraction form
    268,209,124.20/402,408,164.70 = 131,803,309.80/x
  3. Step 3: Cross multiply
    268,209,124.20x = 402,408,164.70 × 131,803,309.80
  4. Step 4: Simplify right side
    268,209,124.20x = 53,038,727,998,003,520
  5. Step 5: Solve for x
    x = 53,038,727,998,003,520/268,209,124.20
  6. Step 6: Final answer
    x = 197,751,393.27

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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.