Home / 928,870,285.80-1,393,305,428.70-315,454,511.55

Finding the Fourth Proportional to 928,870,285.80, 1,393,305,428.70 and 315,454,511.55

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Solution

The fourth proportional to 928,870,285.80, 1,393,305,428.70 and 315,454,511.55 is: 473,181,767.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,870,285.80 : 1,393,305,428.70 = 315,454,511.55 : x
  2. Step 2: Convert to fraction form
    928,870,285.80/1,393,305,428.70 = 315,454,511.55/x
  3. Step 3: Cross multiply
    928,870,285.80x = 1,393,305,428.70 × 315,454,511.55
  4. Step 4: Simplify right side
    928,870,285.80x = 439,524,483,450,521,856
  5. Step 5: Solve for x
    x = 439,524,483,450,521,856/928,870,285.80
  6. Step 6: Final answer
    x = 473,181,767.33

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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.