Home / 358,419,344.85-537,685,704.31-128,383,336.53

Finding the Fourth Proportional to 358,419,344.85, 537,685,704.31 and 128,383,336.53

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Solution

The fourth proportional to 358,419,344.85, 537,685,704.31 and 128,383,336.53 is: 192,595,309.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,419,344.85 : 537,685,704.31 = 128,383,336.53 : x
  2. Step 2: Convert to fraction form
    358,419,344.85/537,685,704.31 = 128,383,336.53/x
  3. Step 3: Cross multiply
    358,419,344.85x = 537,685,704.31 × 128,383,336.53
  4. Step 4: Simplify right side
    358,419,344.85x = 69,029,884,721,112,368
  5. Step 5: Solve for x
    x = 69,029,884,721,112,368/358,419,344.85
  6. Step 6: Final answer
    x = 192,595,309.70

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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.