Home / 312,616,734.91-468,878,976.72-91,228,631.91

Finding the Fourth Proportional to 312,616,734.91, 468,878,976.72 and 91,228,631.91

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Solution

The fourth proportional to 312,616,734.91, 468,878,976.72 and 91,228,631.91 is: 136,829,487.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,616,734.91 : 468,878,976.72 = 91,228,631.91 : x
  2. Step 2: Convert to fraction form
    312,616,734.91/468,878,976.72 = 91,228,631.91/x
  3. Step 3: Cross multiply
    312,616,734.91x = 468,878,976.72 × 91,228,631.91
  4. Step 4: Simplify right side
    312,616,734.91x = 42,775,187,577,526,344
  5. Step 5: Solve for x
    x = 42,775,187,577,526,344/312,616,734.91
  6. Step 6: Final answer
    x = 136,829,487.36

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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.