Home / 492,171,940.80-738,541,346.40-185,684,011.20

Finding the Fourth Proportional to 492,171,940.80, 738,541,346.40 and 185,684,011.20

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Solution

The fourth proportional to 492,171,940.80, 738,541,346.40 and 185,684,011.20 is: 278,632,949.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,171,940.80 : 738,541,346.40 = 185,684,011.20 : x
  2. Step 2: Convert to fraction form
    492,171,940.80/738,541,346.40 = 185,684,011.20/x
  3. Step 3: Cross multiply
    492,171,940.80x = 738,541,346.40 × 185,684,011.20
  4. Step 4: Simplify right side
    492,171,940.80x = 137,135,319,636,600,672
  5. Step 5: Solve for x
    x = 137,135,319,636,600,672/492,171,940.80
  6. Step 6: Final answer
    x = 278,632,949.72

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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.