Home / 21,691,018.32-29,932,594.80-11,901,241.68

Finding the Fourth Proportional to 21,691,018.32, 29,932,594.80 and 11,901,241.68

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Solution

The fourth proportional to 21,691,018.32, 29,932,594.80 and 11,901,241.68 is: 16,423,159.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,691,018.32 : 29,932,594.80 = 11,901,241.68 : x
  2. Step 2: Convert to fraction form
    21,691,018.32/29,932,594.80 = 11,901,241.68/x
  3. Step 3: Cross multiply
    21,691,018.32x = 29,932,594.80 × 11,901,241.68
  4. Step 4: Simplify right side
    21,691,018.32x = 356,235,044,824,311.25
  5. Step 5: Solve for x
    x = 356,235,044,824,311.25/21,691,018.32
  6. Step 6: Final answer
    x = 16,423,159.10

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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.