Home / 783,881,524.64-1,081,205,757.84-515,871,967.07

Finding the Fourth Proportional to 783,881,524.64, 1,081,205,757.84 and 515,871,967.07

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Solution

The fourth proportional to 783,881,524.64, 1,081,205,757.84 and 515,871,967.07 is: 711,540,868.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,881,524.64 : 1,081,205,757.84 = 515,871,967.07 : x
  2. Step 2: Convert to fraction form
    783,881,524.64/1,081,205,757.84 = 515,871,967.07/x
  3. Step 3: Cross multiply
    783,881,524.64x = 1,081,205,757.84 × 515,871,967.07
  4. Step 4: Simplify right side
    783,881,524.64x = 557,763,741,104,330,816
  5. Step 5: Solve for x
    x = 557,763,741,104,330,816/783,881,524.64
  6. Step 6: Final answer
    x = 711,540,868.83

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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.