Home / 53,018,141.80-79,511,466.30-20,651,416.60

Finding the Fourth Proportional to 53,018,141.80, 79,511,466.30 and 20,651,416.60

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Solution

The fourth proportional to 53,018,141.80, 79,511,466.30 and 20,651,416.60 is: 30,970,991.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,018,141.80 : 79,511,466.30 = 20,651,416.60 : x
  2. Step 2: Convert to fraction form
    53,018,141.80/79,511,466.30 = 20,651,416.60/x
  3. Step 3: Cross multiply
    53,018,141.80x = 79,511,466.30 × 20,651,416.60
  4. Step 4: Simplify right side
    53,018,141.80x = 1,642,024,415,038,160.75
  5. Step 5: Solve for x
    x = 1,642,024,415,038,160.75/53,018,141.80
  6. Step 6: Final answer
    x = 30,970,991.42

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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.