Home / 13,879,612.96-20,820,235.76-5,359,994.08

Finding the Fourth Proportional to 13,879,612.96, 20,820,235.76 and 5,359,994.08

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Solution

The fourth proportional to 13,879,612.96, 20,820,235.76 and 5,359,994.08 is: 8,040,306.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,879,612.96 : 20,820,235.76 = 5,359,994.08 : x
  2. Step 2: Convert to fraction form
    13,879,612.96/20,820,235.76 = 5,359,994.08/x
  3. Step 3: Cross multiply
    13,879,612.96x = 20,820,235.76 × 5,359,994.08
  4. Step 4: Simplify right side
    13,879,612.96x = 111,596,340,417,804.31
  5. Step 5: Solve for x
    x = 111,596,340,417,804.31/13,879,612.96
  6. Step 6: Final answer
    x = 8,040,306.36

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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.