Home / 120,669,429.08-166,607,124.54-112,959,991.64

Finding the Fourth Proportional to 120,669,429.08, 166,607,124.54 and 112,959,991.64

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Solution

The fourth proportional to 120,669,429.08, 166,607,124.54 and 112,959,991.64 is: 155,962,778.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,669,429.08 : 166,607,124.54 = 112,959,991.64 : x
  2. Step 2: Convert to fraction form
    120,669,429.08/166,607,124.54 = 112,959,991.64/x
  3. Step 3: Cross multiply
    120,669,429.08x = 166,607,124.54 × 112,959,991.64
  4. Step 4: Simplify right side
    120,669,429.08x = 18,819,939,395,202,840
  5. Step 5: Solve for x
    x = 18,819,939,395,202,840/120,669,429.08
  6. Step 6: Final answer
    x = 155,962,778.13

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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.