Home / 205,909,116.31-308,875,347.26-65,861,874.78

Finding the Fourth Proportional to 205,909,116.31, 308,875,347.26 and 65,861,874.78

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Solution

The fourth proportional to 205,909,116.31, 308,875,347.26 and 65,861,874.78 is: 98,796,545.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,909,116.31 : 308,875,347.26 = 65,861,874.78 : x
  2. Step 2: Convert to fraction form
    205,909,116.31/308,875,347.26 = 65,861,874.78/x
  3. Step 3: Cross multiply
    205,909,116.31x = 308,875,347.26 × 65,861,874.78
  4. Step 4: Simplify right side
    205,909,116.31x = 20,343,109,443,867,136
  5. Step 5: Solve for x
    x = 20,343,109,443,867,136/205,909,116.31
  6. Step 6: Final answer
    x = 98,796,545.82

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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.