Home / 120,905,583,969.28-166,841,643,717.12-69,465,798,722.56

Finding the Fourth Proportional to 120,905,583,969.28, 166,841,643,717.12 and 69,465,798,722.56

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Solution

The fourth proportional to 120,905,583,969.28, 166,841,643,717.12 and 69,465,798,722.56 is: 95,858,170,156.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,905,583,969.28 : 166,841,643,717.12 = 69,465,798,722.56 : x
  2. Step 2: Convert to fraction form
    120,905,583,969.28/166,841,643,717.12 = 69,465,798,722.56/x
  3. Step 3: Cross multiply
    120,905,583,969.28x = 166,841,643,717.12 × 69,465,798,722.56
  4. Step 4: Simplify right side
    120,905,583,969.28x = 11,589,788,040,994,523,971,584
  5. Step 5: Solve for x
    x = 11,589,788,040,994,523,971,584/120,905,583,969.28
  6. Step 6: Final answer
    x = 95,858,170,156.47

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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.