Home / 786,833,912.00-1,085,926,013.78-447,824,812.68

Finding the Fourth Proportional to 786,833,912.00, 1,085,926,013.78 and 447,824,812.68

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Solution

The fourth proportional to 786,833,912.00, 1,085,926,013.78 and 447,824,812.68 is: 618,052,433.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,833,912.00 : 1,085,926,013.78 = 447,824,812.68 : x
  2. Step 2: Convert to fraction form
    786,833,912.00/1,085,926,013.78 = 447,824,812.68/x
  3. Step 3: Cross multiply
    786,833,912.00x = 1,085,926,013.78 × 447,824,812.68
  4. Step 4: Simplify right side
    786,833,912.00x = 486,304,613,703,128,512
  5. Step 5: Solve for x
    x = 486,304,613,703,128,512/786,833,912.00
  6. Step 6: Final answer
    x = 618,052,433.04

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1.5x scale

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.