Home / 442,870,574.60-664,305,861.90-328,079,318.60

Finding the Fourth Proportional to 442,870,574.60, 664,305,861.90 and 328,079,318.60

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Solution

The fourth proportional to 442,870,574.60, 664,305,861.90 and 328,079,318.60 is: 492,118,977.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,870,574.60 : 664,305,861.90 = 328,079,318.60 : x
  2. Step 2: Convert to fraction form
    442,870,574.60/664,305,861.90 = 328,079,318.60/x
  3. Step 3: Cross multiply
    442,870,574.60x = 664,305,861.90 × 328,079,318.60
  4. Step 4: Simplify right side
    442,870,574.60x = 217,945,014,514,137,696
  5. Step 5: Solve for x
    x = 217,945,014,514,137,696/442,870,574.60
  6. Step 6: Final answer
    x = 492,118,977.90

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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.