Home / 91,003,616.70-136,505,425.05-39,985,280.70

Finding the Fourth Proportional to 91,003,616.70, 136,505,425.05 and 39,985,280.70

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Solution

The fourth proportional to 91,003,616.70, 136,505,425.05 and 39,985,280.70 is: 59,977,921.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,003,616.70 : 136,505,425.05 = 39,985,280.70 : x
  2. Step 2: Convert to fraction form
    91,003,616.70/136,505,425.05 = 39,985,280.70/x
  3. Step 3: Cross multiply
    91,003,616.70x = 136,505,425.05 × 39,985,280.70
  4. Step 4: Simplify right side
    91,003,616.70x = 5,458,207,737,697,062
  5. Step 5: Solve for x
    x = 5,458,207,737,697,062/91,003,616.70
  6. Step 6: Final answer
    x = 59,977,921.05

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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.