Home / 100,623,822.72-138,861,345.60-57,166,143.36

Finding the Fourth Proportional to 100,623,822.72, 138,861,345.60 and 57,166,143.36

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Solution

The fourth proportional to 100,623,822.72, 138,861,345.60 and 57,166,143.36 is: 78,889,544.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,623,822.72 : 138,861,345.60 = 57,166,143.36 : x
  2. Step 2: Convert to fraction form
    100,623,822.72/138,861,345.60 = 57,166,143.36/x
  3. Step 3: Cross multiply
    100,623,822.72x = 138,861,345.60 × 57,166,143.36
  4. Step 4: Simplify right side
    100,623,822.72x = 7,938,167,589,732,105
  5. Step 5: Solve for x
    x = 7,938,167,589,732,105/100,623,822.72
  6. Step 6: Final answer
    x = 78,889,544.99

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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.