Home / 20,620,555.95-30,934,816.99-7,840,066.94

Finding the Fourth Proportional to 20,620,555.95, 30,934,816.99 and 7,840,066.94

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Solution

The fourth proportional to 20,620,555.95, 30,934,816.99 and 7,840,066.94 is: 11,761,614.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,620,555.95 : 30,934,816.99 = 7,840,066.94 : x
  2. Step 2: Convert to fraction form
    20,620,555.95/30,934,816.99 = 7,840,066.94/x
  3. Step 3: Cross multiply
    20,620,555.95x = 30,934,816.99 × 7,840,066.94
  4. Step 4: Simplify right side
    20,620,555.95x = 242,531,035,978,249.31
  5. Step 5: Solve for x
    x = 242,531,035,978,249.31/20,620,555.95
  6. Step 6: Final answer
    x = 11,761,614.80

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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.