Home / 15,424,857.06-21,285,998.26-8,455,549.62

Finding the Fourth Proportional to 15,424,857.06, 21,285,998.26 and 8,455,549.62

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Solution

The fourth proportional to 15,424,857.06, 21,285,998.26 and 8,455,549.62 is: 11,668,491.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,424,857.06 : 21,285,998.26 = 8,455,549.62 : x
  2. Step 2: Convert to fraction form
    15,424,857.06/21,285,998.26 = 8,455,549.62/x
  3. Step 3: Cross multiply
    15,424,857.06x = 21,285,998.26 × 8,455,549.62
  4. Step 4: Simplify right side
    15,424,857.06x = 179,984,814,498,663.66
  5. Step 5: Solve for x
    x = 179,984,814,498,663.66/15,424,857.06
  6. Step 6: Final answer
    x = 11,668,491.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.