Home / 21,411,131.20-32,106,069.60-7,763,732.80

Finding the Fourth Proportional to 21,411,131.20, 32,106,069.60 and 7,763,732.80

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Solution

The fourth proportional to 21,411,131.20, 32,106,069.60 and 7,763,732.80 is: 11,641,745.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,411,131.20 : 32,106,069.60 = 7,763,732.80 : x
  2. Step 2: Convert to fraction form
    21,411,131.20/32,106,069.60 = 7,763,732.80/x
  3. Step 3: Cross multiply
    21,411,131.20x = 32,106,069.60 × 7,763,732.80
  4. Step 4: Simplify right side
    21,411,131.20x = 249,262,945,632,602.88
  5. Step 5: Solve for x
    x = 249,262,945,632,602.88/21,411,131.20
  6. Step 6: Final answer
    x = 11,641,745.75

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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.