Home / 1,028,818,434.80-1,419,891,155.16-611,132,370.32

Finding the Fourth Proportional to 1,028,818,434.80, 1,419,891,155.16 and 611,132,370.32

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Solution

The fourth proportional to 1,028,818,434.80, 1,419,891,155.16 and 611,132,370.32 is: 843,434,971.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,818,434.80 : 1,419,891,155.16 = 611,132,370.32 : x
  2. Step 2: Convert to fraction form
    1,028,818,434.80/1,419,891,155.16 = 611,132,370.32/x
  3. Step 3: Cross multiply
    1,028,818,434.80x = 1,419,891,155.16 × 611,132,370.32
  4. Step 4: Simplify right side
    1,028,818,434.80x = 867,741,447,249,333,888
  5. Step 5: Solve for x
    x = 867,741,447,249,333,888/1,028,818,434.80
  6. Step 6: Final answer
    x = 843,434,971.51

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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.