Home / 330,151,007.70-494,050,780.35-287,488,761.30

Finding the Fourth Proportional to 330,151,007.70, 494,050,780.35 and 287,488,761.30

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Solution

The fourth proportional to 330,151,007.70, 494,050,780.35 and 287,488,761.30 is: 430,209,339.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,151,007.70 : 494,050,780.35 = 287,488,761.30 : x
  2. Step 2: Convert to fraction form
    330,151,007.70/494,050,780.35 = 287,488,761.30/x
  3. Step 3: Cross multiply
    330,151,007.70x = 494,050,780.35 × 287,488,761.30
  4. Step 4: Simplify right side
    330,151,007.70x = 142,034,046,862,119,888
  5. Step 5: Solve for x
    x = 142,034,046,862,119,888/330,151,007.70
  6. Step 6: Final answer
    x = 430,209,339.21

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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.