Home / 12,151,207.40-18,205,815.90-10,261,639.40

Finding the Fourth Proportional to 12,151,207.40, 18,205,815.90 and 10,261,639.40

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Solution

The fourth proportional to 12,151,207.40, 18,205,815.90 and 10,261,639.40 is: 15,374,728.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,151,207.40 : 18,205,815.90 = 10,261,639.40 : x
  2. Step 2: Convert to fraction form
    12,151,207.40/18,205,815.90 = 10,261,639.40/x
  3. Step 3: Cross multiply
    12,151,207.40x = 18,205,815.90 × 10,261,639.40
  4. Step 4: Simplify right side
    12,151,207.40x = 186,821,517,748,586.44
  5. Step 5: Solve for x
    x = 186,821,517,748,586.44/12,151,207.40
  6. Step 6: Final answer
    x = 15,374,728.75

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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.