Home / 72,858,490.80-109,413,707.40-38,846,266.80

Finding the Fourth Proportional to 72,858,490.80, 109,413,707.40 and 38,846,266.80

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Solution

The fourth proportional to 72,858,490.80, 109,413,707.40 and 38,846,266.80 is: 58,336,564.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,858,490.80 : 109,413,707.40 = 38,846,266.80 : x
  2. Step 2: Convert to fraction form
    72,858,490.80/109,413,707.40 = 38,846,266.80/x
  3. Step 3: Cross multiply
    72,858,490.80x = 109,413,707.40 × 38,846,266.80
  4. Step 4: Simplify right side
    72,858,490.80x = 4,250,314,069,237,534
  5. Step 5: Solve for x
    x = 4,250,314,069,237,534/72,858,490.80
  6. Step 6: Final answer
    x = 58,336,564.79

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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.