Home / 644,081,889.69-965,229,004.67-293,471,111.16

Finding the Fourth Proportional to 644,081,889.69, 965,229,004.67 and 293,471,111.16

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Solution

The fourth proportional to 644,081,889.69, 965,229,004.67 and 293,471,111.16 is: 439,799,399.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,081,889.69 : 965,229,004.67 = 293,471,111.16 : x
  2. Step 2: Convert to fraction form
    644,081,889.69/965,229,004.67 = 293,471,111.16/x
  3. Step 3: Cross multiply
    644,081,889.69x = 965,229,004.67 × 293,471,111.16
  4. Step 4: Simplify right side
    644,081,889.69x = 283,266,828,522,898,400
  5. Step 5: Solve for x
    x = 283,266,828,522,898,400/644,081,889.69
  6. Step 6: Final answer
    x = 439,799,399.82

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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.