Home / 20,760,495.62-28,643,731.11-11,939,466.02

Finding the Fourth Proportional to 20,760,495.62, 28,643,731.11 and 11,939,466.02

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Solution

The fourth proportional to 20,760,495.62, 28,643,731.11 and 11,939,466.02 is: 16,473,154.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,760,495.62 : 28,643,731.11 = 11,939,466.02 : x
  2. Step 2: Convert to fraction form
    20,760,495.62/28,643,731.11 = 11,939,466.02/x
  3. Step 3: Cross multiply
    20,760,495.62x = 28,643,731.11 × 11,939,466.02
  4. Step 4: Simplify right side
    20,760,495.62x = 341,990,854,130,643.25
  5. Step 5: Solve for x
    x = 341,990,854,130,643.25/20,760,495.62
  6. Step 6: Final answer
    x = 16,473,154.61

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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.