Home / 13,156,453.60-19,722,238.80-7,769,240.80

Finding the Fourth Proportional to 13,156,453.60, 19,722,238.80 and 7,769,240.80

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Solution

The fourth proportional to 13,156,453.60, 19,722,238.80 and 7,769,240.80 is: 11,646,514.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,156,453.60 : 19,722,238.80 = 7,769,240.80 : x
  2. Step 2: Convert to fraction form
    13,156,453.60/19,722,238.80 = 7,769,240.80/x
  3. Step 3: Cross multiply
    13,156,453.60x = 19,722,238.80 × 7,769,240.80
  4. Step 4: Simplify right side
    13,156,453.60x = 153,226,822,352,303.03
  5. Step 5: Solve for x
    x = 153,226,822,352,303.03/13,156,453.60
  6. Step 6: Final answer
    x = 11,646,514.10

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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.