Home / 85,360,238.28-128,040,167.41-65,957,677.29

Finding the Fourth Proportional to 85,360,238.28, 128,040,167.41 and 65,957,677.29

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Solution

The fourth proportional to 85,360,238.28, 128,040,167.41 and 65,957,677.29 is: 98,936,369.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,360,238.28 : 128,040,167.41 = 65,957,677.29 : x
  2. Step 2: Convert to fraction form
    85,360,238.28/128,040,167.41 = 65,957,677.29/x
  3. Step 3: Cross multiply
    85,360,238.28x = 128,040,167.41 × 65,957,677.29
  4. Step 4: Simplify right side
    85,360,238.28x = 8,445,232,042,021,461
  5. Step 5: Solve for x
    x = 8,445,232,042,021,461/85,360,238.28
  6. Step 6: Final answer
    x = 98,936,369.11

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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.