Home / 3,881,974.59-5,357,053.17-2,115,888.12

Finding the Fourth Proportional to 3,881,974.59, 5,357,053.17 and 2,115,888.12

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Solution

The fourth proportional to 3,881,974.59, 5,357,053.17 and 2,115,888.12 is: 2,919,886.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881,974.59 : 5,357,053.17 = 2,115,888.12 : x
  2. Step 2: Convert to fraction form
    3,881,974.59/5,357,053.17 = 2,115,888.12/x
  3. Step 3: Cross multiply
    3,881,974.59x = 5,357,053.17 × 2,115,888.12
  4. Step 4: Simplify right side
    3,881,974.59x = 11,334,925,160,611.34
  5. Step 5: Solve for x
    x = 11,334,925,160,611.34/3,881,974.59
  6. Step 6: Final answer
    x = 2,919,886.49

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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.