Home / 7,278,438.40-10,915,788.52-2,159,657.58

Finding the Fourth Proportional to 7,278,438.40, 10,915,788.52 and 2,159,657.58

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Solution

The fourth proportional to 7,278,438.40, 10,915,788.52 and 2,159,657.58 is: 3,238,931.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,278,438.40 : 10,915,788.52 = 2,159,657.58 : x
  2. Step 2: Convert to fraction form
    7,278,438.40/10,915,788.52 = 2,159,657.58/x
  3. Step 3: Cross multiply
    7,278,438.40x = 10,915,788.52 × 2,159,657.58
  4. Step 4: Simplify right side
    7,278,438.40x = 23,574,365,418,894.98
  5. Step 5: Solve for x
    x = 23,574,365,418,894.98/7,278,438.40
  6. Step 6: Final answer
    x = 3,238,931.78

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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.