Home / 18,788,321.68-25,927,443.91-11,053,861.31

Finding the Fourth Proportional to 18,788,321.68, 25,927,443.91 and 11,053,861.31

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Solution

The fourth proportional to 18,788,321.68, 25,927,443.91 and 11,053,861.31 is: 15,254,069.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,788,321.68 : 25,927,443.91 = 11,053,861.31 : x
  2. Step 2: Convert to fraction form
    18,788,321.68/25,927,443.91 = 11,053,861.31/x
  3. Step 3: Cross multiply
    18,788,321.68x = 25,927,443.91 × 11,053,861.31
  4. Step 4: Simplify right side
    18,788,321.68x = 286,598,369,103,944.12
  5. Step 5: Solve for x
    x = 286,598,369,103,944.12/18,788,321.68
  6. Step 6: Final answer
    x = 15,254,069.73

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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.