Home / 125,904,429.60-188,856,644.40-74,760,122.40

Finding the Fourth Proportional to 125,904,429.60, 188,856,644.40 and 74,760,122.40

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Solution

The fourth proportional to 125,904,429.60, 188,856,644.40 and 74,760,122.40 is: 112,140,183.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,904,429.60 : 188,856,644.40 = 74,760,122.40 : x
  2. Step 2: Convert to fraction form
    125,904,429.60/188,856,644.40 = 74,760,122.40/x
  3. Step 3: Cross multiply
    125,904,429.60x = 188,856,644.40 × 74,760,122.40
  4. Step 4: Simplify right side
    125,904,429.60x = 14,118,945,851,397,276
  5. Step 5: Solve for x
    x = 14,118,945,851,397,276/125,904,429.60
  6. Step 6: Final answer
    x = 112,140,183.60

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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.