Home / 20,870,488.80-31,311,176.40-8,091,410.40

Finding the Fourth Proportional to 20,870,488.80, 31,311,176.40 and 8,091,410.40

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Solution

The fourth proportional to 20,870,488.80, 31,311,176.40 and 8,091,410.40 is: 12,139,225.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,870,488.80 : 31,311,176.40 = 8,091,410.40 : x
  2. Step 2: Convert to fraction form
    20,870,488.80/31,311,176.40 = 8,091,410.40/x
  3. Step 3: Cross multiply
    20,870,488.80x = 31,311,176.40 × 8,091,410.40
  4. Step 4: Simplify right side
    20,870,488.80x = 253,351,578,359,194.56
  5. Step 5: Solve for x
    x = 253,351,578,359,194.56/20,870,488.80
  6. Step 6: Final answer
    x = 12,139,225.91

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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.