Home / 90,843,643.36-136,265,470.98-72,562,245.22

Finding the Fourth Proportional to 90,843,643.36, 136,265,470.98 and 72,562,245.22

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Solution

The fourth proportional to 90,843,643.36, 136,265,470.98 and 72,562,245.22 is: 108,843,372.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,843,643.36 : 136,265,470.98 = 72,562,245.22 : x
  2. Step 2: Convert to fraction form
    90,843,643.36/136,265,470.98 = 72,562,245.22/x
  3. Step 3: Cross multiply
    90,843,643.36x = 136,265,470.98 × 72,562,245.22
  4. Step 4: Simplify right side
    90,843,643.36x = 9,887,728,520,269,552
  5. Step 5: Solve for x
    x = 9,887,728,520,269,552/90,843,643.36
  6. Step 6: Final answer
    x = 108,843,372.57

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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.