Home / 442,870,515.10-664,305,772.65-328,079,259.10

Finding the Fourth Proportional to 442,870,515.10, 664,305,772.65 and 328,079,259.10

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Solution

The fourth proportional to 442,870,515.10, 664,305,772.65 and 328,079,259.10 is: 492,118,888.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,870,515.10 : 664,305,772.65 = 328,079,259.10 : x
  2. Step 2: Convert to fraction form
    442,870,515.10/664,305,772.65 = 328,079,259.10/x
  3. Step 3: Cross multiply
    442,870,515.10x = 664,305,772.65 × 328,079,259.10
  4. Step 4: Simplify right side
    442,870,515.10x = 217,944,945,706,865,056
  5. Step 5: Solve for x
    x = 217,944,945,706,865,056/442,870,515.10
  6. Step 6: Final answer
    x = 492,118,888.65

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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.