Home / 263,835,393.93-395,813,890.41-91,312,209.45

Finding the Fourth Proportional to 263,835,393.93, 395,813,890.41 and 91,312,209.45

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Solution

The fourth proportional to 263,835,393.93, 395,813,890.41 and 91,312,209.45 is: 136,989,356.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,835,393.93 : 395,813,890.41 = 91,312,209.45 : x
  2. Step 2: Convert to fraction form
    263,835,393.93/395,813,890.41 = 91,312,209.45/x
  3. Step 3: Cross multiply
    263,835,393.93x = 395,813,890.41 × 91,312,209.45
  4. Step 4: Simplify right side
    263,835,393.93x = 36,142,640,864,337,272
  5. Step 5: Solve for x
    x = 36,142,640,864,337,272/263,835,393.93
  6. Step 6: Final answer
    x = 136,989,356.61

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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.