Home / 85,812,934.20-128,713,496.40-27,519,761.40

Finding the Fourth Proportional to 85,812,934.20, 128,713,496.40 and 27,519,761.40

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Solution

The fourth proportional to 85,812,934.20, 128,713,496.40 and 27,519,761.40 is: 41,277,748.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,812,934.20 : 128,713,496.40 = 27,519,761.40 : x
  2. Step 2: Convert to fraction form
    85,812,934.20/128,713,496.40 = 27,519,761.40/x
  3. Step 3: Cross multiply
    85,812,934.20x = 128,713,496.40 × 27,519,761.40
  4. Step 4: Simplify right side
    85,812,934.20x = 3,542,164,709,887,759
  5. Step 5: Solve for x
    x = 3,542,164,709,887,759/85,812,934.20
  6. Step 6: Final answer
    x = 41,277,748.43

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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.