Home / 19,188,663.66-28,785,986.55-11,510,503.65

Finding the Fourth Proportional to 19,188,663.66, 28,785,986.55 and 11,510,503.65

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Solution

The fourth proportional to 19,188,663.66, 28,785,986.55 and 11,510,503.65 is: 17,267,549.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,188,663.66 : 28,785,986.55 = 11,510,503.65 : x
  2. Step 2: Convert to fraction form
    19,188,663.66/28,785,986.55 = 11,510,503.65/x
  3. Step 3: Cross multiply
    19,188,663.66x = 28,785,986.55 × 11,510,503.65
  4. Step 4: Simplify right side
    19,188,663.66x = 331,341,203,252,625.94
  5. Step 5: Solve for x
    x = 331,341,203,252,625.94/19,188,663.66
  6. Step 6: Final answer
    x = 17,267,549.69

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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.