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Finding the Fourth Proportional to 637,939,928.80, 957,357,790.80 and 274,694,975.20

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Solution

The fourth proportional to 637,939,928.80, 957,357,790.80 and 274,694,975.20 is: 412,235,326.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,939,928.80 : 957,357,790.80 = 274,694,975.20 : x
  2. Step 2: Convert to fraction form
    637,939,928.80/957,357,790.80 = 274,694,975.20/x
  3. Step 3: Cross multiply
    637,939,928.80x = 957,357,790.80 × 274,694,975.20
  4. Step 4: Simplify right side
    637,939,928.80x = 262,981,374,601,332,768
  5. Step 5: Solve for x
    x = 262,981,374,601,332,768/637,939,928.80
  6. Step 6: Final answer
    x = 412,235,326.13

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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.