Home / 12,477,225.60-18,715,838.40-7,669,324.80

Finding the Fourth Proportional to 12,477,225.60, 18,715,838.40 and 7,669,324.80

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Solution

The fourth proportional to 12,477,225.60, 18,715,838.40 and 7,669,324.80 is: 11,503,987.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,477,225.60 : 18,715,838.40 = 7,669,324.80 : x
  2. Step 2: Convert to fraction form
    12,477,225.60/18,715,838.40 = 7,669,324.80/x
  3. Step 3: Cross multiply
    12,477,225.60x = 18,715,838.40 × 7,669,324.80
  4. Step 4: Simplify right side
    12,477,225.60x = 143,537,843,593,912.31
  5. Step 5: Solve for x
    x = 143,537,843,593,912.31/12,477,225.60
  6. Step 6: Final answer
    x = 11,503,987.20

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1.5x scale

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.