Home / 21,401,774.40-32,102,661.60-19,764,148.80

Finding the Fourth Proportional to 21,401,774.40, 32,102,661.60 and 19,764,148.80

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Solution

The fourth proportional to 21,401,774.40, 32,102,661.60 and 19,764,148.80 is: 29,646,223.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,401,774.40 : 32,102,661.60 = 19,764,148.80 : x
  2. Step 2: Convert to fraction form
    21,401,774.40/32,102,661.60 = 19,764,148.80/x
  3. Step 3: Cross multiply
    21,401,774.40x = 32,102,661.60 × 19,764,148.80
  4. Step 4: Simplify right side
    21,401,774.40x = 634,481,780,738,446.12
  5. Step 5: Solve for x
    x = 634,481,780,738,446.12/21,401,774.40
  6. Step 6: Final answer
    x = 29,646,223.20

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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.