Home / 1,028,818,448.80-1,419,891,174.56-611,132,384.32

Finding the Fourth Proportional to 1,028,818,448.80, 1,419,891,174.56 and 611,132,384.32

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Solution

The fourth proportional to 1,028,818,448.80, 1,419,891,174.56 and 611,132,384.32 is: 843,434,990.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,818,448.80 : 1,419,891,174.56 = 611,132,384.32 : x
  2. Step 2: Convert to fraction form
    1,028,818,448.80/1,419,891,174.56 = 611,132,384.32/x
  3. Step 3: Cross multiply
    1,028,818,448.80x = 1,419,891,174.56 × 611,132,384.32
  4. Step 4: Simplify right side
    1,028,818,448.80x = 867,741,478,983,778,176
  5. Step 5: Solve for x
    x = 867,741,478,983,778,176/1,028,818,448.80
  6. Step 6: Final answer
    x = 843,434,990.88

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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.