Home / 73,083,593.42-109,642,578.89-21,269,313.76

Finding the Fourth Proportional to 73,083,593.42, 109,642,578.89 and 21,269,313.76

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Solution

The fourth proportional to 73,083,593.42, 109,642,578.89 and 21,269,313.76 is: 31,908,973.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,083,593.42 : 109,642,578.89 = 21,269,313.76 : x
  2. Step 2: Convert to fraction form
    73,083,593.42/109,642,578.89 = 21,269,313.76/x
  3. Step 3: Cross multiply
    73,083,593.42x = 109,642,578.89 × 21,269,313.76
  4. Step 4: Simplify right side
    73,083,593.42x = 2,332,022,411,866,962.50
  5. Step 5: Solve for x
    x = 2,332,022,411,866,962.50/73,083,593.42
  6. Step 6: Final answer
    x = 31,908,973.04

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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.