Home / 12,151,188.40-18,205,787.40-10,261,620.40

Finding the Fourth Proportional to 12,151,188.40, 18,205,787.40 and 10,261,620.40

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Solution

The fourth proportional to 12,151,188.40, 18,205,787.40 and 10,261,620.40 is: 15,374,700.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,151,188.40 : 18,205,787.40 = 10,261,620.40 : x
  2. Step 2: Convert to fraction form
    12,151,188.40/18,205,787.40 = 10,261,620.40/x
  3. Step 3: Cross multiply
    12,151,188.40x = 18,205,787.40 × 10,261,620.40
  4. Step 4: Simplify right side
    12,151,188.40x = 186,820,879,381,902.94
  5. Step 5: Solve for x
    x = 186,820,879,381,902.94/12,151,188.40
  6. Step 6: Final answer
    x = 15,374,700.25

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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.