Home / 21,166,857.64-31,740,015.66-12,415,526.92

Finding the Fourth Proportional to 21,166,857.64, 31,740,015.66 and 12,415,526.92

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Solution

The fourth proportional to 21,166,857.64, 31,740,015.66 and 12,415,526.92 is: 18,617,265.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,166,857.64 : 31,740,015.66 = 12,415,526.92 : x
  2. Step 2: Convert to fraction form
    21,166,857.64/31,740,015.66 = 12,415,526.92/x
  3. Step 3: Cross multiply
    21,166,857.64x = 31,740,015.66 × 12,415,526.92
  4. Step 4: Simplify right side
    21,166,857.64x = 394,069,018,867,951.56
  5. Step 5: Solve for x
    x = 394,069,018,867,951.56/21,166,857.64
  6. Step 6: Final answer
    x = 18,617,265.99

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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.