Home / 20,872,676.93-31,317,699.11-9,195,071.87

Finding the Fourth Proportional to 20,872,676.93, 31,317,699.11 and 9,195,071.87

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Solution

The fourth proportional to 20,872,676.93, 31,317,699.11 and 9,195,071.87 is: 13,796,433.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,872,676.93 : 31,317,699.11 = 9,195,071.87 : x
  2. Step 2: Convert to fraction form
    20,872,676.93/31,317,699.11 = 9,195,071.87/x
  3. Step 3: Cross multiply
    20,872,676.93x = 31,317,699.11 × 9,195,071.87
  4. Step 4: Simplify right side
    20,872,676.93x = 287,968,494,151,803.94
  5. Step 5: Solve for x
    x = 287,968,494,151,803.94/20,872,676.93
  6. Step 6: Final answer
    x = 13,796,433.25

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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.