Home / 206,310,817,821.52-309,607,586,556.76-72,005,307,885.81

Finding the Fourth Proportional to 206,310,817,821.52, 309,607,586,556.76 and 72,005,307,885.81

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Solution

The fourth proportional to 206,310,817,821.52, 309,607,586,556.76 and 72,005,307,885.81 is: 108,057,298,348.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,310,817,821.52 : 309,607,586,556.76 = 72,005,307,885.81 : x
  2. Step 2: Convert to fraction form
    206,310,817,821.52/309,607,586,556.76 = 72,005,307,885.81/x
  3. Step 3: Cross multiply
    206,310,817,821.52x = 309,607,586,556.76 × 72,005,307,885.81
  4. Step 4: Simplify right side
    206,310,817,821.52x = 22,293,389,593,802,073,702,400
  5. Step 5: Solve for x
    x = 22,293,389,593,802,073,702,400/206,310,817,821.52
  6. Step 6: Final answer
    x = 108,057,298,348.21

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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.