Home / 21,138,561.16-29,171,363.94-11,480,769.16

Finding the Fourth Proportional to 21,138,561.16, 29,171,363.94 and 11,480,769.16

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Solution

The fourth proportional to 21,138,561.16, 29,171,363.94 and 11,480,769.16 is: 15,843,542.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,138,561.16 : 29,171,363.94 = 11,480,769.16 : x
  2. Step 2: Convert to fraction form
    21,138,561.16/29,171,363.94 = 11,480,769.16/x
  3. Step 3: Cross multiply
    21,138,561.16x = 29,171,363.94 × 11,480,769.16
  4. Step 4: Simplify right side
    21,138,561.16x = 334,909,695,477,488.12
  5. Step 5: Solve for x
    x = 334,909,695,477,488.12/21,138,561.16
  6. Step 6: Final answer
    x = 15,843,542.66

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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.