Home / 178,968,160.12-268,278,136.10-85,570,860.82

Finding the Fourth Proportional to 178,968,160.12, 268,278,136.10 and 85,570,860.82

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Solution

The fourth proportional to 178,968,160.12, 268,278,136.10 and 85,570,860.82 is: 128,273,046.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,968,160.12 : 268,278,136.10 = 85,570,860.82 : x
  2. Step 2: Convert to fraction form
    178,968,160.12/268,278,136.10 = 85,570,860.82/x
  3. Step 3: Cross multiply
    178,968,160.12x = 268,278,136.10 × 85,570,860.82
  4. Step 4: Simplify right side
    178,968,160.12x = 22,956,791,044,834,260
  5. Step 5: Solve for x
    x = 22,956,791,044,834,260/178,968,160.12
  6. Step 6: Final answer
    x = 128,273,046.05

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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.