Home / 20,278,415.50-30,421,436.85-8,148,840.58

Finding the Fourth Proportional to 20,278,415.50, 30,421,436.85 and 8,148,840.58

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Solution

The fourth proportional to 20,278,415.50, 30,421,436.85 and 8,148,840.58 is: 12,224,793.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,278,415.50 : 30,421,436.85 = 8,148,840.58 : x
  2. Step 2: Convert to fraction form
    20,278,415.50/30,421,436.85 = 8,148,840.58/x
  3. Step 3: Cross multiply
    20,278,415.50x = 30,421,436.85 × 8,148,840.58
  4. Step 4: Simplify right side
    20,278,415.50x = 247,899,439,105,187.38
  5. Step 5: Solve for x
    x = 247,899,439,105,187.38/20,278,415.50
  6. Step 6: Final answer
    x = 12,224,793.36

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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.