Home / 13,208,719.20-19,813,078.80-11,319,151.20

Finding the Fourth Proportional to 13,208,719.20, 19,813,078.80 and 11,319,151.20

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Solution

The fourth proportional to 13,208,719.20, 19,813,078.80 and 11,319,151.20 is: 16,978,726.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,208,719.20 : 19,813,078.80 = 11,319,151.20 : x
  2. Step 2: Convert to fraction form
    13,208,719.20/19,813,078.80 = 11,319,151.20/x
  3. Step 3: Cross multiply
    13,208,719.20x = 19,813,078.80 × 11,319,151.20
  4. Step 4: Simplify right side
    13,208,719.20x = 224,267,234,674,714.56
  5. Step 5: Solve for x
    x = 224,267,234,674,714.56/13,208,719.20
  6. Step 6: Final answer
    x = 16,978,726.80

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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.