Home / 12,640,471.81-18,952,736.10-6,964,681.93

Finding the Fourth Proportional to 12,640,471.81, 18,952,736.10 and 6,964,681.93

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Solution

The fourth proportional to 12,640,471.81, 18,952,736.10 and 6,964,681.93 is: 10,442,630.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,640,471.81 : 18,952,736.10 = 6,964,681.93 : x
  2. Step 2: Convert to fraction form
    12,640,471.81/18,952,736.10 = 6,964,681.93/x
  3. Step 3: Cross multiply
    12,640,471.81x = 18,952,736.10 × 6,964,681.93
  4. Step 4: Simplify right side
    12,640,471.81x = 131,999,778,566,229.30
  5. Step 5: Solve for x
    x = 131,999,778,566,229.30/12,640,471.81
  6. Step 6: Final answer
    x = 10,442,630.67

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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.