Home / 710,014,227.80-979,800,839.06-396,751,015.94

Finding the Fourth Proportional to 710,014,227.80, 979,800,839.06 and 396,751,015.94

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Solution

The fourth proportional to 710,014,227.80, 979,800,839.06 and 396,751,015.94 is: 547,505,899.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,014,227.80 : 979,800,839.06 = 396,751,015.94 : x
  2. Step 2: Convert to fraction form
    710,014,227.80/979,800,839.06 = 396,751,015.94/x
  3. Step 3: Cross multiply
    710,014,227.80x = 979,800,839.06 × 396,751,015.94
  4. Step 4: Simplify right side
    710,014,227.80x = 388,736,978,309,036,672
  5. Step 5: Solve for x
    x = 388,736,978,309,036,672/710,014,227.80
  6. Step 6: Final answer
    x = 547,505,899.31

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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.