Home / 12,990,787.20-19,486,180.80-4,016,246.40

Finding the Fourth Proportional to 12,990,787.20, 19,486,180.80 and 4,016,246.40

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Solution

The fourth proportional to 12,990,787.20, 19,486,180.80 and 4,016,246.40 is: 6,024,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,990,787.20 : 19,486,180.80 = 4,016,246.40 : x
  2. Step 2: Convert to fraction form
    12,990,787.20/19,486,180.80 = 4,016,246.40/x
  3. Step 3: Cross multiply
    12,990,787.20x = 19,486,180.80 × 4,016,246.40
  4. Step 4: Simplify right side
    12,990,787.20x = 78,261,303,487,749.12
  5. Step 5: Solve for x
    x = 78,261,303,487,749.12/12,990,787.20
  6. Step 6: Final answer
    x = 6,024,369.60

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1.5x scale

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.