Home / 81,079,158.21-111,887,855.43-43,909,136.45

Finding the Fourth Proportional to 81,079,158.21, 111,887,855.43 and 43,909,136.45

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Solution

The fourth proportional to 81,079,158.21, 111,887,855.43 and 43,909,136.45 is: 60,593,859.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,079,158.21 : 111,887,855.43 = 43,909,136.45 : x
  2. Step 2: Convert to fraction form
    81,079,158.21/111,887,855.43 = 43,909,136.45/x
  3. Step 3: Cross multiply
    81,079,158.21x = 111,887,855.43 × 43,909,136.45
  4. Step 4: Simplify right side
    81,079,158.21x = 4,912,899,111,116,432
  5. Step 5: Solve for x
    x = 4,912,899,111,116,432/81,079,158.21
  6. Step 6: Final answer
    x = 60,593,859.38

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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.