Home / 120,783,955.80-166,686,577.30-68,577,848.76

Finding the Fourth Proportional to 120,783,955.80, 166,686,577.30 and 68,577,848.76

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Solution

The fourth proportional to 120,783,955.80, 166,686,577.30 and 68,577,848.76 is: 94,640,110.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,783,955.80 : 166,686,577.30 = 68,577,848.76 : x
  2. Step 2: Convert to fraction form
    120,783,955.80/166,686,577.30 = 68,577,848.76/x
  3. Step 3: Cross multiply
    120,783,955.80x = 166,686,577.30 × 68,577,848.76
  4. Step 4: Simplify right side
    120,783,955.80x = 11,431,006,888,401,450
  5. Step 5: Solve for x
    x = 11,431,006,888,401,450/120,783,955.80
  6. Step 6: Final answer
    x = 94,640,110.21

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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.