Home / 100,282,916.70-138,419,122.86-59,053,723.92

Finding the Fourth Proportional to 100,282,916.70, 138,419,122.86 and 59,053,723.92

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Solution

The fourth proportional to 100,282,916.70, 138,419,122.86 and 59,053,723.92 is: 81,511,038.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,282,916.70 : 138,419,122.86 = 59,053,723.92 : x
  2. Step 2: Convert to fraction form
    100,282,916.70/138,419,122.86 = 59,053,723.92/x
  3. Step 3: Cross multiply
    100,282,916.70x = 138,419,122.86 × 59,053,723.92
  4. Step 4: Simplify right side
    100,282,916.70x = 8,174,164,666,623,002
  5. Step 5: Solve for x
    x = 8,174,164,666,623,002/100,282,916.70
  6. Step 6: Final answer
    x = 81,511,038.33

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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.