Home / 38,711,388,827.05-53,414,624,894.51-21,563,815,375.95

Finding the Fourth Proportional to 38,711,388,827.05, 53,414,624,894.51 and 21,563,815,375.95

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Solution

The fourth proportional to 38,711,388,827.05, 53,414,624,894.51 and 21,563,815,375.95 is: 29,754,114,861.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,711,388,827.05 : 53,414,624,894.51 = 21,563,815,375.95 : x
  2. Step 2: Convert to fraction form
    38,711,388,827.05/53,414,624,894.51 = 21,563,815,375.95/x
  3. Step 3: Cross multiply
    38,711,388,827.05x = 53,414,624,894.51 × 21,563,815,375.95
  4. Step 4: Simplify right side
    38,711,388,827.05x = 1,151,823,109,600,740,769,792
  5. Step 5: Solve for x
    x = 1,151,823,109,600,740,769,792/38,711,388,827.05
  6. Step 6: Final answer
    x = 29,754,114,861.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.