Home / 21,318,798.64-29,420,030.75-11,529,242.82

Finding the Fourth Proportional to 21,318,798.64, 29,420,030.75 and 11,529,242.82

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Solution

The fourth proportional to 21,318,798.64, 29,420,030.75 and 11,529,242.82 is: 15,910,403.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,318,798.64 : 29,420,030.75 = 11,529,242.82 : x
  2. Step 2: Convert to fraction form
    21,318,798.64/29,420,030.75 = 11,529,242.82/x
  3. Step 3: Cross multiply
    21,318,798.64x = 29,420,030.75 × 11,529,242.82
  4. Step 4: Simplify right side
    21,318,798.64x = 339,190,678,288,616.75
  5. Step 5: Solve for x
    x = 339,190,678,288,616.75/21,318,798.64
  6. Step 6: Final answer
    x = 15,910,403.02

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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.