Home / 103,062,577.69-142,294,844.01-79,177,664.85

Finding the Fourth Proportional to 103,062,577.69, 142,294,844.01 and 79,177,664.85

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Solution

The fourth proportional to 103,062,577.69, 142,294,844.01 and 79,177,664.85 is: 109,317,792.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,062,577.69 : 142,294,844.01 = 79,177,664.85 : x
  2. Step 2: Convert to fraction form
    103,062,577.69/142,294,844.01 = 79,177,664.85/x
  3. Step 3: Cross multiply
    103,062,577.69x = 142,294,844.01 × 79,177,664.85
  4. Step 4: Simplify right side
    103,062,577.69x = 11,266,573,468,906,808
  5. Step 5: Solve for x
    x = 11,266,573,468,906,808/103,062,577.69
  6. Step 6: Final answer
    x = 109,317,792.37

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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.