Home / 20,899,388.53-31,301,354.43-9,977,261.24

Finding the Fourth Proportional to 20,899,388.53, 31,301,354.43 and 9,977,261.24

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Solution

The fourth proportional to 20,899,388.53, 31,301,354.43 and 9,977,261.24 is: 14,943,106.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,899,388.53 : 31,301,354.43 = 9,977,261.24 : x
  2. Step 2: Convert to fraction form
    20,899,388.53/31,301,354.43 = 9,977,261.24/x
  3. Step 3: Cross multiply
    20,899,388.53x = 31,301,354.43 × 9,977,261.24
  4. Step 4: Simplify right side
    20,899,388.53x = 312,301,790,313,941.31
  5. Step 5: Solve for x
    x = 312,301,790,313,941.31/20,899,388.53
  6. Step 6: Final answer
    x = 14,943,106.59

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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.