Home / 178,945,218.30-268,415,130.60-80,507,407.89

Finding the Fourth Proportional to 178,945,218.30, 268,415,130.60 and 80,507,407.89

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Solution

The fourth proportional to 178,945,218.30, 268,415,130.60 and 80,507,407.89 is: 120,759,898.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,945,218.30 : 268,415,130.60 = 80,507,407.89 : x
  2. Step 2: Convert to fraction form
    178,945,218.30/268,415,130.60 = 80,507,407.89/x
  3. Step 3: Cross multiply
    178,945,218.30x = 268,415,130.60 × 80,507,407.89
  4. Step 4: Simplify right side
    178,945,218.30x = 21,609,406,403,061,820
  5. Step 5: Solve for x
    x = 21,609,406,403,061,820/178,945,218.30
  6. Step 6: Final answer
    x = 120,759,898.52

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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.