Home / 28,775,141.60-43,162,712.40-19,705,215.20

Finding the Fourth Proportional to 28,775,141.60, 43,162,712.40 and 19,705,215.20

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Solution

The fourth proportional to 28,775,141.60, 43,162,712.40 and 19,705,215.20 is: 29,557,822.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,775,141.60 : 43,162,712.40 = 19,705,215.20 : x
  2. Step 2: Convert to fraction form
    28,775,141.60/43,162,712.40 = 19,705,215.20/x
  3. Step 3: Cross multiply
    28,775,141.60x = 43,162,712.40 × 19,705,215.20
  4. Step 4: Simplify right side
    28,775,141.60x = 850,530,536,457,708.38
  5. Step 5: Solve for x
    x = 850,530,536,457,708.38/28,775,141.60
  6. Step 6: Final answer
    x = 29,557,822.80

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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.