Home / 287,448,860.80-431,229,278.40-82,983,606.40

Finding the Fourth Proportional to 287,448,860.80, 431,229,278.40 and 82,983,606.40

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Solution

The fourth proportional to 287,448,860.80, 431,229,278.40 and 82,983,606.40 is: 124,491,572.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,448,860.80 : 431,229,278.40 = 82,983,606.40 : x
  2. Step 2: Convert to fraction form
    287,448,860.80/431,229,278.40 = 82,983,606.40/x
  3. Step 3: Cross multiply
    287,448,860.80x = 431,229,278.40 × 82,983,606.40
  4. Step 4: Simplify right side
    287,448,860.80x = 35,784,960,706,901,624
  5. Step 5: Solve for x
    x = 35,784,960,706,901,624/287,448,860.80
  6. Step 6: Final answer
    x = 124,491,572.54

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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.