Home / 20,457,644.98-28,240,756.79-13,492,454.57

Finding the Fourth Proportional to 20,457,644.98, 28,240,756.79 and 13,492,454.57

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Solution

The fourth proportional to 20,457,644.98, 28,240,756.79 and 13,492,454.57 is: 18,625,659.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,457,644.98 : 28,240,756.79 = 13,492,454.57 : x
  2. Step 2: Convert to fraction form
    20,457,644.98/28,240,756.79 = 13,492,454.57/x
  3. Step 3: Cross multiply
    20,457,644.98x = 28,240,756.79 × 13,492,454.57
  4. Step 4: Simplify right side
    20,457,644.98x = 381,037,128,011,494
  5. Step 5: Solve for x
    x = 381,037,128,011,494/20,457,644.98
  6. Step 6: Final answer
    x = 18,625,659.42

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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.