Home / 69,632,021.20-104,448,031.80-66,977,813.20

Finding the Fourth Proportional to 69,632,021.20, 104,448,031.80 and 66,977,813.20

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Solution

The fourth proportional to 69,632,021.20, 104,448,031.80 and 66,977,813.20 is: 100,466,719.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,632,021.20 : 104,448,031.80 = 66,977,813.20 : x
  2. Step 2: Convert to fraction form
    69,632,021.20/104,448,031.80 = 66,977,813.20/x
  3. Step 3: Cross multiply
    69,632,021.20x = 104,448,031.80 × 66,977,813.20
  4. Step 4: Simplify right side
    69,632,021.20x = 6,995,700,763,008,060
  5. Step 5: Solve for x
    x = 6,995,700,763,008,060/69,632,021.20
  6. Step 6: Final answer
    x = 100,466,719.80

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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.