Home / 135,658,084.80-203,487,127.20-84,002,019.60

Finding the Fourth Proportional to 135,658,084.80, 203,487,127.20 and 84,002,019.60

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Solution

The fourth proportional to 135,658,084.80, 203,487,127.20 and 84,002,019.60 is: 126,003,029.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,658,084.80 : 203,487,127.20 = 84,002,019.60 : x
  2. Step 2: Convert to fraction form
    135,658,084.80/203,487,127.20 = 84,002,019.60/x
  3. Step 3: Cross multiply
    135,658,084.80x = 203,487,127.20 × 84,002,019.60
  4. Step 4: Simplify right side
    135,658,084.80x = 17,093,329,647,402,090
  5. Step 5: Solve for x
    x = 17,093,329,647,402,090/135,658,084.80
  6. Step 6: Final answer
    x = 126,003,029.40

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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.