Home / 268,931,173.76-371,121,247.26-149,858,784.62

Finding the Fourth Proportional to 268,931,173.76, 371,121,247.26 and 149,858,784.62

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Solution

The fourth proportional to 268,931,173.76, 371,121,247.26 and 149,858,784.62 is: 206,803,020.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,931,173.76 : 371,121,247.26 = 149,858,784.62 : x
  2. Step 2: Convert to fraction form
    268,931,173.76/371,121,247.26 = 149,858,784.62/x
  3. Step 3: Cross multiply
    268,931,173.76x = 371,121,247.26 × 149,858,784.62
  4. Step 4: Simplify right side
    268,931,173.76x = 55,615,779,061,042,104
  5. Step 5: Solve for x
    x = 55,615,779,061,042,104/268,931,173.76
  6. Step 6: Final answer
    x = 206,803,020.58

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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.