Home / 15,679,404.52-21,638,192.96-10,728,230.80

Finding the Fourth Proportional to 15,679,404.52, 21,638,192.96 and 10,728,230.80

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Solution

The fourth proportional to 15,679,404.52, 21,638,192.96 and 10,728,230.80 is: 14,805,379.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,679,404.52 : 21,638,192.96 = 10,728,230.80 : x
  2. Step 2: Convert to fraction form
    15,679,404.52/21,638,192.96 = 10,728,230.80/x
  3. Step 3: Cross multiply
    15,679,404.52x = 21,638,192.96 × 10,728,230.80
  4. Step 4: Simplify right side
    15,679,404.52x = 232,139,528,169,815.19
  5. Step 5: Solve for x
    x = 232,139,528,169,815.19/15,679,404.52
  6. Step 6: Final answer
    x = 14,805,379.11

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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.