Home / 20,289,643.31-27,996,718.32-12,338,129.27

Finding the Fourth Proportional to 20,289,643.31, 27,996,718.32 and 12,338,129.27

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Solution

The fourth proportional to 20,289,643.31, 27,996,718.32 and 12,338,129.27 is: 17,024,800.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,289,643.31 : 27,996,718.32 = 12,338,129.27 : x
  2. Step 2: Convert to fraction form
    20,289,643.31/27,996,718.32 = 12,338,129.27/x
  3. Step 3: Cross multiply
    20,289,643.31x = 27,996,718.32 × 12,338,129.27
  4. Step 4: Simplify right side
    20,289,643.31x = 345,427,129,767,937.19
  5. Step 5: Solve for x
    x = 345,427,129,767,937.19/20,289,643.31
  6. Step 6: Final answer
    x = 17,024,800.51

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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.