Home / 287,496,010.80-431,244,016.20-134,441,002.80

Finding the Fourth Proportional to 287,496,010.80, 431,244,016.20 and 134,441,002.80

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Solution

The fourth proportional to 287,496,010.80, 431,244,016.20 and 134,441,002.80 is: 201,661,504.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,496,010.80 : 431,244,016.20 = 134,441,002.80 : x
  2. Step 2: Convert to fraction form
    287,496,010.80/431,244,016.20 = 134,441,002.80/x
  3. Step 3: Cross multiply
    287,496,010.80x = 431,244,016.20 × 134,441,002.80
  4. Step 4: Simplify right side
    287,496,010.80x = 57,976,877,989,427,448
  5. Step 5: Solve for x
    x = 57,976,877,989,427,448/287,496,010.80
  6. Step 6: Final answer
    x = 201,661,504.20

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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.