Home / 206,999,456.42-310,501,889.19-68,825,063.52

Finding the Fourth Proportional to 206,999,456.42, 310,501,889.19 and 68,825,063.52

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Solution

The fourth proportional to 206,999,456.42, 310,501,889.19 and 68,825,063.52 is: 103,238,494.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,999,456.42 : 310,501,889.19 = 68,825,063.52 : x
  2. Step 2: Convert to fraction form
    206,999,456.42/310,501,889.19 = 68,825,063.52/x
  3. Step 3: Cross multiply
    206,999,456.42x = 310,501,889.19 × 68,825,063.52
  4. Step 4: Simplify right side
    206,999,456.42x = 21,370,312,246,581,748
  5. Step 5: Solve for x
    x = 21,370,312,246,581,748/206,999,456.42
  6. Step 6: Final answer
    x = 103,238,494.52

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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.