Home / 12,195,064.79-18,294,270.24-7,079,895.95

Finding the Fourth Proportional to 12,195,064.79, 18,294,270.24 and 7,079,895.95

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Solution

The fourth proportional to 12,195,064.79, 18,294,270.24 and 7,079,895.95 is: 10,620,815.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,195,064.79 : 18,294,270.24 = 7,079,895.95 : x
  2. Step 2: Convert to fraction form
    12,195,064.79/18,294,270.24 = 7,079,895.95/x
  3. Step 3: Cross multiply
    12,195,064.79x = 18,294,270.24 × 7,079,895.95
  4. Step 4: Simplify right side
    12,195,064.79x = 129,521,529,688,910.17
  5. Step 5: Solve for x
    x = 129,521,529,688,910.17/12,195,064.79
  6. Step 6: Final answer
    x = 10,620,815.22

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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.