Home / 12,154,396.88-16,775,311.52-7,808,915.36

Finding the Fourth Proportional to 12,154,396.88, 16,775,311.52 and 7,808,915.36

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Solution

The fourth proportional to 12,154,396.88, 16,775,311.52 and 7,808,915.36 is: 10,777,744.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,154,396.88 : 16,775,311.52 = 7,808,915.36 : x
  2. Step 2: Convert to fraction form
    12,154,396.88/16,775,311.52 = 7,808,915.36/x
  3. Step 3: Cross multiply
    12,154,396.88x = 16,775,311.52 × 7,808,915.36
  4. Step 4: Simplify right side
    12,154,396.88x = 130,996,987,797,312.95
  5. Step 5: Solve for x
    x = 130,996,987,797,312.95/12,154,396.88
  6. Step 6: Final answer
    x = 10,777,744.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.