Home / 330,347,140.53-455,891,040.18-189,245,631.50

Finding the Fourth Proportional to 330,347,140.53, 455,891,040.18 and 189,245,631.50

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Solution

The fourth proportional to 330,347,140.53, 455,891,040.18 and 189,245,631.50 is: 261,165,838.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,347,140.53 : 455,891,040.18 = 189,245,631.50 : x
  2. Step 2: Convert to fraction form
    330,347,140.53/455,891,040.18 = 189,245,631.50/x
  3. Step 3: Cross multiply
    330,347,140.53x = 455,891,040.18 × 189,245,631.50
  4. Step 4: Simplify right side
    330,347,140.53x = 86,275,387,793,486,112
  5. Step 5: Solve for x
    x = 86,275,387,793,486,112/330,347,140.53
  6. Step 6: Final answer
    x = 261,165,838.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.