Home / 86,508,004.05-129,762,006.08-54,259,376.85

Finding the Fourth Proportional to 86,508,004.05, 129,762,006.08 and 54,259,376.85

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Solution

The fourth proportional to 86,508,004.05, 129,762,006.08 and 54,259,376.85 is: 81,389,065.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,508,004.05 : 129,762,006.08 = 54,259,376.85 : x
  2. Step 2: Convert to fraction form
    86,508,004.05/129,762,006.08 = 54,259,376.85/x
  3. Step 3: Cross multiply
    86,508,004.05x = 129,762,006.08 × 54,259,376.85
  4. Step 4: Simplify right side
    86,508,004.05x = 7,040,805,588,435,415
  5. Step 5: Solve for x
    x = 7,040,805,588,435,415/86,508,004.05
  6. Step 6: Final answer
    x = 81,389,065.28

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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.