Home / 85,708,916.82-128,597,438.16-27,425,572.56

Finding the Fourth Proportional to 85,708,916.82, 128,597,438.16 and 27,425,572.56

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Solution

The fourth proportional to 85,708,916.82, 128,597,438.16 and 27,425,572.56 is: 41,149,258.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,708,916.82 : 128,597,438.16 = 27,425,572.56 : x
  2. Step 2: Convert to fraction form
    85,708,916.82/128,597,438.16 = 27,425,572.56/x
  3. Step 3: Cross multiply
    85,708,916.82x = 128,597,438.16 × 27,425,572.56
  4. Step 4: Simplify right side
    85,708,916.82x = 3,526,858,371,287,192.50
  5. Step 5: Solve for x
    x = 3,526,858,371,287,192.50/85,708,916.82
  6. Step 6: Final answer
    x = 41,149,258.47

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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.