Home / 53,018,133.30-79,511,453.55-20,651,408.10

Finding the Fourth Proportional to 53,018,133.30, 79,511,453.55 and 20,651,408.10

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Solution

The fourth proportional to 53,018,133.30, 79,511,453.55 and 20,651,408.10 is: 30,970,978.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,018,133.30 : 79,511,453.55 = 20,651,408.10 : x
  2. Step 2: Convert to fraction form
    53,018,133.30/79,511,453.55 = 20,651,408.10/x
  3. Step 3: Cross multiply
    53,018,133.30x = 79,511,453.55 × 20,651,408.10
  4. Step 4: Simplify right side
    53,018,133.30x = 1,642,023,475,885,243.75
  5. Step 5: Solve for x
    x = 1,642,023,475,885,243.75/53,018,133.30
  6. Step 6: Final answer
    x = 30,970,978.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.