Home / 92,912,506.20-139,368,759.30-81,074,657.93

Finding the Fourth Proportional to 92,912,506.20, 139,368,759.30 and 81,074,657.93

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Solution

The fourth proportional to 92,912,506.20, 139,368,759.30 and 81,074,657.93 is: 121,611,986.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,912,506.20 : 139,368,759.30 = 81,074,657.93 : x
  2. Step 2: Convert to fraction form
    92,912,506.20/139,368,759.30 = 81,074,657.93/x
  3. Step 3: Cross multiply
    92,912,506.20x = 139,368,759.30 × 81,074,657.93
  4. Step 4: Simplify right side
    92,912,506.20x = 11,299,274,485,679,164
  5. Step 5: Solve for x
    x = 11,299,274,485,679,164/92,912,506.20
  6. Step 6: Final answer
    x = 121,611,986.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.