Home / 20,515,789.60-30,773,684.40-19,571,005.60

Finding the Fourth Proportional to 20,515,789.60, 30,773,684.40 and 19,571,005.60

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Solution

The fourth proportional to 20,515,789.60, 30,773,684.40 and 19,571,005.60 is: 29,356,508.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,515,789.60 : 30,773,684.40 = 19,571,005.60 : x
  2. Step 2: Convert to fraction form
    20,515,789.60/30,773,684.40 = 19,571,005.60/x
  3. Step 3: Cross multiply
    20,515,789.60x = 30,773,684.40 × 19,571,005.60
  4. Step 4: Simplify right side
    20,515,789.60x = 602,271,949,725,032.62
  5. Step 5: Solve for x
    x = 602,271,949,725,032.62/20,515,789.60
  6. Step 6: Final answer
    x = 29,356,508.40

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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.