Home / 13,872,011.20-20,808,016.80-12,777,150.40

Finding the Fourth Proportional to 13,872,011.20, 20,808,016.80 and 12,777,150.40

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Solution

The fourth proportional to 13,872,011.20, 20,808,016.80 and 12,777,150.40 is: 19,165,725.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,872,011.20 : 20,808,016.80 = 12,777,150.40 : x
  2. Step 2: Convert to fraction form
    13,872,011.20/20,808,016.80 = 12,777,150.40/x
  3. Step 3: Cross multiply
    13,872,011.20x = 20,808,016.80 × 12,777,150.40
  4. Step 4: Simplify right side
    13,872,011.20x = 265,867,160,179,326.75
  5. Step 5: Solve for x
    x = 265,867,160,179,326.75/13,872,011.20
  6. Step 6: Final answer
    x = 19,165,725.60

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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.