Home / 18,441,885.46-25,426,145.30-15,121,947.77

Finding the Fourth Proportional to 18,441,885.46, 25,426,145.30 and 15,121,947.77

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Solution

The fourth proportional to 18,441,885.46, 25,426,145.30 and 15,121,947.77 is: 20,848,889.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,441,885.46 : 25,426,145.30 = 15,121,947.77 : x
  2. Step 2: Convert to fraction form
    18,441,885.46/25,426,145.30 = 15,121,947.77/x
  3. Step 3: Cross multiply
    18,441,885.46x = 25,426,145.30 × 15,121,947.77
  4. Step 4: Simplify right side
    18,441,885.46x = 384,492,841,143,421.25
  5. Step 5: Solve for x
    x = 384,492,841,143,421.25/18,441,885.46
  6. Step 6: Final answer
    x = 20,848,889.99

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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.