Home / 198,688,209.56-274,184,890.01-109,379,427.86

Finding the Fourth Proportional to 198,688,209.56, 274,184,890.01 and 109,379,427.86

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Solution

The fourth proportional to 198,688,209.56, 274,184,890.01 and 109,379,427.86 is: 150,940,946.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,688,209.56 : 274,184,890.01 = 109,379,427.86 : x
  2. Step 2: Convert to fraction form
    198,688,209.56/274,184,890.01 = 109,379,427.86/x
  3. Step 3: Cross multiply
    198,688,209.56x = 274,184,890.01 × 109,379,427.86
  4. Step 4: Simplify right side
    198,688,209.56x = 29,990,186,395,779,904
  5. Step 5: Solve for x
    x = 29,990,186,395,779,904/198,688,209.56
  6. Step 6: Final answer
    x = 150,940,946.43

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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.