Home / 118,998,438.40-178,497,657.60-82,718,732.80

Finding the Fourth Proportional to 118,998,438.40, 178,497,657.60 and 82,718,732.80

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Solution

The fourth proportional to 118,998,438.40, 178,497,657.60 and 82,718,732.80 is: 124,078,099.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,998,438.40 : 178,497,657.60 = 82,718,732.80 : x
  2. Step 2: Convert to fraction form
    118,998,438.40/178,497,657.60 = 82,718,732.80/x
  3. Step 3: Cross multiply
    118,998,438.40x = 178,497,657.60 × 82,718,732.80
  4. Step 4: Simplify right side
    118,998,438.40x = 14,765,100,044,440,288
  5. Step 5: Solve for x
    x = 14,765,100,044,440,288/118,998,438.40
  6. Step 6: Final answer
    x = 124,078,099.20

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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.