Home / 13,644,901.09-18,831,614.72-7,765,964.72

Finding the Fourth Proportional to 13,644,901.09, 18,831,614.72 and 7,765,964.72

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Solution

The fourth proportional to 13,644,901.09, 18,831,614.72 and 7,765,964.72 is: 10,717,971.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,644,901.09 : 18,831,614.72 = 7,765,964.72 : x
  2. Step 2: Convert to fraction form
    13,644,901.09/18,831,614.72 = 7,765,964.72/x
  3. Step 3: Cross multiply
    13,644,901.09x = 18,831,614.72 × 7,765,964.72
  4. Step 4: Simplify right side
    13,644,901.09x = 146,245,655,623,394.72
  5. Step 5: Solve for x
    x = 146,245,655,623,394.72/13,644,901.09
  6. Step 6: Final answer
    x = 10,717,971.11

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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.