Home / 13,516,965.47-18,653,027.81-7,935,122.36

Finding the Fourth Proportional to 13,516,965.47, 18,653,027.81 and 7,935,122.36

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Solution

The fourth proportional to 13,516,965.47, 18,653,027.81 and 7,935,122.36 is: 10,950,243.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,516,965.47 : 18,653,027.81 = 7,935,122.36 : x
  2. Step 2: Convert to fraction form
    13,516,965.47/18,653,027.81 = 7,935,122.36/x
  3. Step 3: Cross multiply
    13,516,965.47x = 18,653,027.81 × 7,935,122.36
  4. Step 4: Simplify right side
    13,516,965.47x = 148,014,058,017,157.22
  5. Step 5: Solve for x
    x = 148,014,058,017,157.22/13,516,965.47
  6. Step 6: Final answer
    x = 10,950,243.11

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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.