Home / 20,346,592.72-28,071,353.64-12,608,811.76

Finding the Fourth Proportional to 20,346,592.72, 28,071,353.64 and 12,608,811.76

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Solution

The fourth proportional to 20,346,592.72, 28,071,353.64 and 12,608,811.76 is: 17,395,856.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,346,592.72 : 28,071,353.64 = 12,608,811.76 : x
  2. Step 2: Convert to fraction form
    20,346,592.72/28,071,353.64 = 12,608,811.76/x
  3. Step 3: Cross multiply
    20,346,592.72x = 28,071,353.64 × 12,608,811.76
  4. Step 4: Simplify right side
    20,346,592.72x = 353,946,413,895,150.81
  5. Step 5: Solve for x
    x = 353,946,413,895,150.81/20,346,592.72
  6. Step 6: Final answer
    x = 17,395,856.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.