Home / 72,967,961.60-109,379,750.40-34,561,971.20

Finding the Fourth Proportional to 72,967,961.60, 109,379,750.40 and 34,561,971.20

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Solution

The fourth proportional to 72,967,961.60, 109,379,750.40 and 34,561,971.20 is: 51,808,762.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,967,961.60 : 109,379,750.40 = 34,561,971.20 : x
  2. Step 2: Convert to fraction form
    72,967,961.60/109,379,750.40 = 34,561,971.20/x
  3. Step 3: Cross multiply
    72,967,961.60x = 109,379,750.40 × 34,561,971.20
  4. Step 4: Simplify right side
    72,967,961.60x = 3,780,379,783,187,989
  5. Step 5: Solve for x
    x = 3,780,379,783,187,989/72,967,961.60
  6. Step 6: Final answer
    x = 51,808,762.37

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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.