Home / 15,679,410.56-21,638,201.24-10,728,236.80

Finding the Fourth Proportional to 15,679,410.56, 21,638,201.24 and 10,728,236.80

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Solution

The fourth proportional to 15,679,410.56, 21,638,201.24 and 10,728,236.80 is: 14,805,387.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,679,410.56 : 21,638,201.24 = 10,728,236.80 : x
  2. Step 2: Convert to fraction form
    15,679,410.56/21,638,201.24 = 10,728,236.80/x
  3. Step 3: Cross multiply
    15,679,410.56x = 21,638,201.24 × 10,728,236.80
  4. Step 4: Simplify right side
    15,679,410.56x = 232,139,746,828,773.62
  5. Step 5: Solve for x
    x = 232,139,746,828,773.62/15,679,410.56
  6. Step 6: Final answer
    x = 14,805,387.35

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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.