Home / 644,081,890.69-965,229,006.16-293,471,112.16

Finding the Fourth Proportional to 644,081,890.69, 965,229,006.16 and 293,471,112.16

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Solution

The fourth proportional to 644,081,890.69, 965,229,006.16 and 293,471,112.16 is: 439,799,401.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,081,890.69 : 965,229,006.16 = 293,471,112.16 : x
  2. Step 2: Convert to fraction form
    644,081,890.69/965,229,006.16 = 293,471,112.16/x
  3. Step 3: Cross multiply
    644,081,890.69x = 965,229,006.16 × 293,471,112.16
  4. Step 4: Simplify right side
    644,081,890.69x = 283,266,829,926,866,720
  5. Step 5: Solve for x
    x = 283,266,829,926,866,720/644,081,890.69
  6. Step 6: Final answer
    x = 439,799,401.32

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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.