Home / 12,807,856.80-19,211,785.20-8,503,184.70

Finding the Fourth Proportional to 12,807,856.80, 19,211,785.20 and 8,503,184.70

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Solution

The fourth proportional to 12,807,856.80, 19,211,785.20 and 8,503,184.70 is: 12,754,777.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,807,856.80 : 19,211,785.20 = 8,503,184.70 : x
  2. Step 2: Convert to fraction form
    12,807,856.80/19,211,785.20 = 8,503,184.70/x
  3. Step 3: Cross multiply
    12,807,856.80x = 19,211,785.20 × 8,503,184.70
  4. Step 4: Simplify right side
    12,807,856.80x = 163,361,357,972,326.41
  5. Step 5: Solve for x
    x = 163,361,357,972,326.41/12,807,856.80
  6. Step 6: Final answer
    x = 12,754,777.05

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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.