Home / 2,185,127.55-3,015,488.66-1,218,318.03

Finding the Fourth Proportional to 2,185,127.55, 3,015,488.66 and 1,218,318.03

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Solution

The fourth proportional to 2,185,127.55, 3,015,488.66 and 1,218,318.03 is: 1,681,285.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,185,127.55 : 3,015,488.66 = 1,218,318.03 : x
  2. Step 2: Convert to fraction form
    2,185,127.55/3,015,488.66 = 1,218,318.03/x
  3. Step 3: Cross multiply
    2,185,127.55x = 3,015,488.66 × 1,218,318.03
  4. Step 4: Simplify right side
    2,185,127.55x = 3,673,824,197,646.95
  5. Step 5: Solve for x
    x = 3,673,824,197,646.95/2,185,127.55
  6. Step 6: Final answer
    x = 1,681,285.93

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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.