Home / 7,278,437.40-10,915,787.03-2,159,656.58

Finding the Fourth Proportional to 7,278,437.40, 10,915,787.03 and 2,159,656.58

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Solution

The fourth proportional to 7,278,437.40, 10,915,787.03 and 2,159,656.58 is: 3,238,930.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,278,437.40 : 10,915,787.03 = 2,159,656.58 : x
  2. Step 2: Convert to fraction form
    7,278,437.40/10,915,787.03 = 2,159,656.58/x
  3. Step 3: Cross multiply
    7,278,437.40x = 10,915,787.03 × 2,159,656.58
  4. Step 4: Simplify right side
    7,278,437.40x = 23,574,351,219,840.94
  5. Step 5: Solve for x
    x = 23,574,351,219,840.94/7,278,437.40
  6. Step 6: Final answer
    x = 3,238,930.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.