Home / 12,366,447.72-18,540,703.32-8,312,881.50

Finding the Fourth Proportional to 12,366,447.72, 18,540,703.32 and 8,312,881.50

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Solution

The fourth proportional to 12,366,447.72, 18,540,703.32 and 8,312,881.50 is: 12,463,293.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,366,447.72 : 18,540,703.32 = 8,312,881.50 : x
  2. Step 2: Convert to fraction form
    12,366,447.72/18,540,703.32 = 8,312,881.50/x
  3. Step 3: Cross multiply
    12,366,447.72x = 18,540,703.32 × 8,312,881.50
  4. Step 4: Simplify right side
    12,366,447.72x = 154,126,669,625,816.59
  5. Step 5: Solve for x
    x = 154,126,669,625,816.59/12,366,447.72
  6. Step 6: Final answer
    x = 12,463,293.67

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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.