Home / 812,021,836.28-1,120,560,127.68-440,735,896.04

Finding the Fourth Proportional to 812,021,836.28, 1,120,560,127.68 and 440,735,896.04

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Solution

The fourth proportional to 812,021,836.28, 1,120,560,127.68 and 440,735,896.04 is: 608,199,250.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,021,836.28 : 1,120,560,127.68 = 440,735,896.04 : x
  2. Step 2: Convert to fraction form
    812,021,836.28/1,120,560,127.68 = 440,735,896.04/x
  3. Step 3: Cross multiply
    812,021,836.28x = 1,120,560,127.68 × 440,735,896.04
  4. Step 4: Simplify right side
    812,021,836.28x = 493,871,071,939,741,632
  5. Step 5: Solve for x
    x = 493,871,071,939,741,632/812,021,836.28
  6. Step 6: Final answer
    x = 608,199,250.16

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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.