Home / 137,120,639.54-205,633,129.59-60,401,816.78

Finding the Fourth Proportional to 137,120,639.54, 205,633,129.59 and 60,401,816.78

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Solution

The fourth proportional to 137,120,639.54, 205,633,129.59 and 60,401,816.78 is: 90,581,656.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,120,639.54 : 205,633,129.59 = 60,401,816.78 : x
  2. Step 2: Convert to fraction form
    137,120,639.54/205,633,129.59 = 60,401,816.78/x
  3. Step 3: Cross multiply
    137,120,639.54x = 205,633,129.59 × 60,401,816.78
  4. Step 4: Simplify right side
    137,120,639.54x = 12,420,614,616,365,010
  5. Step 5: Solve for x
    x = 12,420,614,616,365,010/137,120,639.54
  6. Step 6: Final answer
    x = 90,581,656.11

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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.