Home / 13,644,902.78-18,831,617.06-7,765,966.42

Finding the Fourth Proportional to 13,644,902.78, 18,831,617.06 and 7,765,966.42

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Solution

The fourth proportional to 13,644,902.78, 18,831,617.06 and 7,765,966.42 is: 10,717,973.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,644,902.78 : 18,831,617.06 = 7,765,966.42 : x
  2. Step 2: Convert to fraction form
    13,644,902.78/18,831,617.06 = 7,765,966.42/x
  3. Step 3: Cross multiply
    13,644,902.78x = 18,831,617.06 × 7,765,966.42
  4. Step 4: Simplify right side
    13,644,902.78x = 146,245,705,636,350.25
  5. Step 5: Solve for x
    x = 146,245,705,636,350.25/13,644,902.78
  6. Step 6: Final answer
    x = 10,717,973.44

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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.