Home / 21,930,018-30,259,225.80-14,193,986.64

Finding the Fourth Proportional to 21,930,018, 30,259,225.80 and 14,193,986.64

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Solution

The fourth proportional to 21,930,018, 30,259,225.80 and 14,193,986.64 is: 19,584,983.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,930,018 : 30,259,225.80 = 14,193,986.64 : x
  2. Step 2: Convert to fraction form
    21,930,018/30,259,225.80 = 14,193,986.64/x
  3. Step 3: Cross multiply
    21,930,018x = 30,259,225.80 × 14,193,986.64
  4. Step 4: Simplify right side
    21,930,018x = 429,499,046,741,943.31
  5. Step 5: Solve for x
    x = 429,499,046,741,943.31/21,930,018
  6. Step 6: Final answer
    x = 19,584,983.78

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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.