Home / 57,212,844.31-78,953,170.10-31,107,361.91

Finding the Fourth Proportional to 57,212,844.31, 78,953,170.10 and 31,107,361.91

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Solution

The fourth proportional to 57,212,844.31, 78,953,170.10 and 31,107,361.91 is: 42,927,857.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,212,844.31 : 78,953,170.10 = 31,107,361.91 : x
  2. Step 2: Convert to fraction form
    57,212,844.31/78,953,170.10 = 31,107,361.91/x
  3. Step 3: Cross multiply
    57,212,844.31x = 78,953,170.10 × 31,107,361.91
  4. Step 4: Simplify right side
    57,212,844.31x = 2,456,024,835,692,188.50
  5. Step 5: Solve for x
    x = 2,456,024,835,692,188.50/57,212,844.31
  6. Step 6: Final answer
    x = 42,927,857.64

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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.