Home / 118,711,101.60-178,078,679.28-40,977,874.08

Finding the Fourth Proportional to 118,711,101.60, 178,078,679.28 and 40,977,874.08

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Solution

The fourth proportional to 118,711,101.60, 178,078,679.28 and 40,977,874.08 is: 61,470,962.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,711,101.60 : 178,078,679.28 = 40,977,874.08 : x
  2. Step 2: Convert to fraction form
    118,711,101.60/178,078,679.28 = 40,977,874.08/x
  3. Step 3: Cross multiply
    118,711,101.60x = 178,078,679.28 × 40,977,874.08
  4. Step 4: Simplify right side
    118,711,101.60x = 7,297,285,695,868,545
  5. Step 5: Solve for x
    x = 7,297,285,695,868,545/118,711,101.60
  6. Step 6: Final answer
    x = 61,470,962.68

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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.