Home / 120,669,426.08-166,607,120.40-112,959,988.64

Finding the Fourth Proportional to 120,669,426.08, 166,607,120.40 and 112,959,988.64

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Solution

The fourth proportional to 120,669,426.08, 166,607,120.40 and 112,959,988.64 is: 155,962,773.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,669,426.08 : 166,607,120.40 = 112,959,988.64 : x
  2. Step 2: Convert to fraction form
    120,669,426.08/166,607,120.40 = 112,959,988.64/x
  3. Step 3: Cross multiply
    120,669,426.08x = 166,607,120.40 × 112,959,988.64
  4. Step 4: Simplify right side
    120,669,426.08x = 18,819,938,427,727,112
  5. Step 5: Solve for x
    x = 18,819,938,427,727,112/120,669,426.08
  6. Step 6: Final answer
    x = 155,962,773.99

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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.