Home / 99,667,211.40-149,500,817.10-91,775,312.55

Finding the Fourth Proportional to 99,667,211.40, 149,500,817.10 and 91,775,312.55

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Solution

The fourth proportional to 99,667,211.40, 149,500,817.10 and 91,775,312.55 is: 137,662,968.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,667,211.40 : 149,500,817.10 = 91,775,312.55 : x
  2. Step 2: Convert to fraction form
    99,667,211.40/149,500,817.10 = 91,775,312.55/x
  3. Step 3: Cross multiply
    99,667,211.40x = 149,500,817.10 × 91,775,312.55
  4. Step 4: Simplify right side
    99,667,211.40x = 13,720,484,215,832,884
  5. Step 5: Solve for x
    x = 13,720,484,215,832,884/99,667,211.40
  6. Step 6: Final answer
    x = 137,662,968.83

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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.