Home / 71,938,364.49-99,274,873.01-38,898,534.51

Finding the Fourth Proportional to 71,938,364.49, 99,274,873.01 and 38,898,534.51

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Solution

The fourth proportional to 71,938,364.49, 99,274,873.01 and 38,898,534.51 is: 53,679,939.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,938,364.49 : 99,274,873.01 = 38,898,534.51 : x
  2. Step 2: Convert to fraction form
    71,938,364.49/99,274,873.01 = 38,898,534.51/x
  3. Step 3: Cross multiply
    71,938,364.49x = 99,274,873.01 × 38,898,534.51
  4. Step 4: Simplify right side
    71,938,364.49x = 3,861,647,073,560,859.50
  5. Step 5: Solve for x
    x = 3,861,647,073,560,859.50/71,938,364.49
  6. Step 6: Final answer
    x = 53,679,939.78

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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.