Home / 2,181,117.53-3,009,502.40-1,321,178.19

Finding the Fourth Proportional to 2,181,117.53, 3,009,502.40 and 1,321,178.19

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Solution

The fourth proportional to 2,181,117.53, 3,009,502.40 and 1,321,178.19 is: 1,822,959.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181,117.53 : 3,009,502.40 = 1,321,178.19 : x
  2. Step 2: Convert to fraction form
    2,181,117.53/3,009,502.40 = 1,321,178.19/x
  3. Step 3: Cross multiply
    2,181,117.53x = 3,009,502.40 × 1,321,178.19
  4. Step 4: Simplify right side
    2,181,117.53x = 3,976,088,927,026.77
  5. Step 5: Solve for x
    x = 3,976,088,927,026.77/2,181,117.53
  6. Step 6: Final answer
    x = 1,822,959.51

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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.