Home / 163,719,972.99-225,927,630.68-90,379,540.35

Finding the Fourth Proportional to 163,719,972.99, 225,927,630.68 and 90,379,540.35

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Solution

The fourth proportional to 163,719,972.99, 225,927,630.68 and 90,379,540.35 is: 124,720,490.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,719,972.99 : 225,927,630.68 = 90,379,540.35 : x
  2. Step 2: Convert to fraction form
    163,719,972.99/225,927,630.68 = 90,379,540.35/x
  3. Step 3: Cross multiply
    163,719,972.99x = 225,927,630.68 × 90,379,540.35
  4. Step 4: Simplify right side
    163,719,972.99x = 20,419,235,412,771,060
  5. Step 5: Solve for x
    x = 20,419,235,412,771,060/163,719,972.99
  6. Step 6: Final answer
    x = 124,720,490.97

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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.