Home / 434,486,726.80-650,879,784.60-261,449,537.20

Finding the Fourth Proportional to 434,486,726.80, 650,879,784.60 and 261,449,537.20

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Solution

The fourth proportional to 434,486,726.80, 650,879,784.60 and 261,449,537.20 is: 391,662,639.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,486,726.80 : 650,879,784.60 = 261,449,537.20 : x
  2. Step 2: Convert to fraction form
    434,486,726.80/650,879,784.60 = 261,449,537.20/x
  3. Step 3: Cross multiply
    434,486,726.80x = 650,879,784.60 × 261,449,537.20
  4. Step 4: Simplify right side
    434,486,726.80x = 170,172,218,456,505,696
  5. Step 5: Solve for x
    x = 170,172,218,456,505,696/434,486,726.80
  6. Step 6: Final answer
    x = 391,662,639.98

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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.