Home / 20,219,878.80-30,329,818.20-5,843,415.60

Finding the Fourth Proportional to 20,219,878.80, 30,329,818.20 and 5,843,415.60

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Solution

The fourth proportional to 20,219,878.80, 30,329,818.20 and 5,843,415.60 is: 8,765,123.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219,878.80 : 30,329,818.20 = 5,843,415.60 : x
  2. Step 2: Convert to fraction form
    20,219,878.80/30,329,818.20 = 5,843,415.60/x
  3. Step 3: Cross multiply
    20,219,878.80x = 30,329,818.20 × 5,843,415.60
  4. Step 4: Simplify right side
    20,219,878.80x = 177,229,732,815,043.91
  5. Step 5: Solve for x
    x = 177,229,732,815,043.91/20,219,878.80
  6. Step 6: Final answer
    x = 8,765,123.40

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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.