Home / 20,191,966.80-30,287,950.20-17,959,914.60

Finding the Fourth Proportional to 20,191,966.80, 30,287,950.20 and 17,959,914.60

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Solution

The fourth proportional to 20,191,966.80, 30,287,950.20 and 17,959,914.60 is: 26,939,871.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,191,966.80 : 30,287,950.20 = 17,959,914.60 : x
  2. Step 2: Convert to fraction form
    20,191,966.80/30,287,950.20 = 17,959,914.60/x
  3. Step 3: Cross multiply
    20,191,966.80x = 30,287,950.20 × 17,959,914.60
  4. Step 4: Simplify right side
    20,191,966.80x = 543,968,999,001,052.94
  5. Step 5: Solve for x
    x = 543,968,999,001,052.94/20,191,966.80
  6. Step 6: Final answer
    x = 26,939,871.90

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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.