Home / 91,202,983.45-136,747,000.81-77,374,773.81

Finding the Fourth Proportional to 91,202,983.45, 136,747,000.81 and 77,374,773.81

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Solution

The fourth proportional to 91,202,983.45, 136,747,000.81 and 77,374,773.81 is: 116,013,400.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,202,983.45 : 136,747,000.81 = 77,374,773.81 : x
  2. Step 2: Convert to fraction form
    91,202,983.45/136,747,000.81 = 77,374,773.81/x
  3. Step 3: Cross multiply
    91,202,983.45x = 136,747,000.81 × 77,374,773.81
  4. Step 4: Simplify right side
    91,202,983.45x = 10,580,768,256,274,336
  5. Step 5: Solve for x
    x = 10,580,768,256,274,336/91,202,983.45
  6. Step 6: Final answer
    x = 116,013,400.62

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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.