Home / 12,136,512.15-18,215,101.80-4,953,201.30

Finding the Fourth Proportional to 12,136,512.15, 18,215,101.80 and 4,953,201.30

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Solution

The fourth proportional to 12,136,512.15, 18,215,101.80 and 4,953,201.30 is: 7,434,019.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,136,512.15 : 18,215,101.80 = 4,953,201.30 : x
  2. Step 2: Convert to fraction form
    12,136,512.15/18,215,101.80 = 4,953,201.30/x
  3. Step 3: Cross multiply
    12,136,512.15x = 18,215,101.80 × 4,953,201.30
  4. Step 4: Simplify right side
    12,136,512.15x = 90,223,065,915,392.34
  5. Step 5: Solve for x
    x = 90,223,065,915,392.34/12,136,512.15
  6. Step 6: Final answer
    x = 7,434,019.33

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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.