Home / 18,879,120.40-28,333,426.20-8,782,992.40

Finding the Fourth Proportional to 18,879,120.40, 28,333,426.20 and 8,782,992.40

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Solution

The fourth proportional to 18,879,120.40, 28,333,426.20 and 8,782,992.40 is: 13,181,348.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,879,120.40 : 28,333,426.20 = 8,782,992.40 : x
  2. Step 2: Convert to fraction form
    18,879,120.40/28,333,426.20 = 8,782,992.40/x
  3. Step 3: Cross multiply
    18,879,120.40x = 28,333,426.20 × 8,782,992.40
  4. Step 4: Simplify right side
    18,879,120.40x = 248,852,266,980,560.88
  5. Step 5: Solve for x
    x = 248,852,266,980,560.88/18,879,120.40
  6. Step 6: Final answer
    x = 13,181,348.59

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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.