Home / 149,538,341.54-206,389,923.54-89,191,203.42

Finding the Fourth Proportional to 149,538,341.54, 206,389,923.54 and 89,191,203.42

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Solution

The fourth proportional to 149,538,341.54, 206,389,923.54 and 89,191,203.42 is: 123,099,971.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,538,341.54 : 206,389,923.54 = 89,191,203.42 : x
  2. Step 2: Convert to fraction form
    149,538,341.54/206,389,923.54 = 89,191,203.42/x
  3. Step 3: Cross multiply
    149,538,341.54x = 206,389,923.54 × 89,191,203.42
  4. Step 4: Simplify right side
    149,538,341.54x = 18,408,165,654,294,388
  5. Step 5: Solve for x
    x = 18,408,165,654,294,388/149,538,341.54
  6. Step 6: Final answer
    x = 123,099,971.99

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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.