Home / 1,328,986,049.88-1,989,553,335.30-981,633,166.68

Finding the Fourth Proportional to 1,328,986,049.88, 1,989,553,335.30 and 981,633,166.68

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Solution

The fourth proportional to 1,328,986,049.88, 1,989,553,335.30 and 981,633,166.68 is: 1,469,550,068.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,986,049.88 : 1,989,553,335.30 = 981,633,166.68 : x
  2. Step 2: Convert to fraction form
    1,328,986,049.88/1,989,553,335.30 = 981,633,166.68/x
  3. Step 3: Cross multiply
    1,328,986,049.88x = 1,989,553,335.30 × 981,633,166.68
  4. Step 4: Simplify right side
    1,328,986,049.88x = 1,953,011,540,809,294,592
  5. Step 5: Solve for x
    x = 1,953,011,540,809,294,592/1,328,986,049.88
  6. Step 6: Final answer
    x = 1,469,550,068.63

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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.