Home / 12,241,905.90-18,347,112.45-7,444,502.70

Finding the Fourth Proportional to 12,241,905.90, 18,347,112.45 and 7,444,502.70

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Solution

The fourth proportional to 12,241,905.90, 18,347,112.45 and 7,444,502.70 is: 11,157,178.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,241,905.90 : 18,347,112.45 = 7,444,502.70 : x
  2. Step 2: Convert to fraction form
    12,241,905.90/18,347,112.45 = 7,444,502.70/x
  3. Step 3: Cross multiply
    12,241,905.90x = 18,347,112.45 × 7,444,502.70
  4. Step 4: Simplify right side
    12,241,905.90x = 136,585,128,171,228.61
  5. Step 5: Solve for x
    x = 136,585,128,171,228.61/12,241,905.90
  6. Step 6: Final answer
    x = 11,157,178.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.