Home / 81,041,086.20-111,847,851.36-49,697,877

Finding the Fourth Proportional to 81,041,086.20, 111,847,851.36 and 49,697,877

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Solution

The fourth proportional to 81,041,086.20, 111,847,851.36 and 49,697,877 is: 68,589,909.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,041,086.20 : 111,847,851.36 = 49,697,877 : x
  2. Step 2: Convert to fraction form
    81,041,086.20/111,847,851.36 = 49,697,877/x
  3. Step 3: Cross multiply
    81,041,086.20x = 111,847,851.36 × 49,697,877
  4. Step 4: Simplify right side
    81,041,086.20x = 5,558,600,759,603,563
  5. Step 5: Solve for x
    x = 5,558,600,759,603,563/81,041,086.20
  6. Step 6: Final answer
    x = 68,589,909.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.