Home / 19,579,985.42-27,018,795.78-11,320,577.55

Finding the Fourth Proportional to 19,579,985.42, 27,018,795.78 and 11,320,577.55

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Solution

The fourth proportional to 19,579,985.42, 27,018,795.78 and 11,320,577.55 is: 15,621,481.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,579,985.42 : 27,018,795.78 = 11,320,577.55 : x
  2. Step 2: Convert to fraction form
    19,579,985.42/27,018,795.78 = 11,320,577.55/x
  3. Step 3: Cross multiply
    19,579,985.42x = 27,018,795.78 × 11,320,577.55
  4. Step 4: Simplify right side
    19,579,985.42x = 305,868,372,935,102.75
  5. Step 5: Solve for x
    x = 305,868,372,935,102.75/19,579,985.42
  6. Step 6: Final answer
    x = 15,621,481.14

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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.