Home / 20,416,505.16-28,175,415.03-11,716,269.24

Finding the Fourth Proportional to 20,416,505.16, 28,175,415.03 and 11,716,269.24

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Solution

The fourth proportional to 20,416,505.16, 28,175,415.03 and 11,716,269.24 is: 16,168,817.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,416,505.16 : 28,175,415.03 = 11,716,269.24 : x
  2. Step 2: Convert to fraction form
    20,416,505.16/28,175,415.03 = 11,716,269.24/x
  3. Step 3: Cross multiply
    20,416,505.16x = 28,175,415.03 × 11,716,269.24
  4. Step 4: Simplify right side
    20,416,505.16x = 330,110,748,440,222.69
  5. Step 5: Solve for x
    x = 330,110,748,440,222.69/20,416,505.16
  6. Step 6: Final answer
    x = 16,168,817.62

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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.