Home / 90,812,879.60-125,393,179.58-73,115,566

Finding the Fourth Proportional to 90,812,879.60, 125,393,179.58 and 73,115,566

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Solution

The fourth proportional to 90,812,879.60, 125,393,179.58 and 73,115,566 is: 100,956,971.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,812,879.60 : 125,393,179.58 = 73,115,566 : x
  2. Step 2: Convert to fraction form
    90,812,879.60/125,393,179.58 = 73,115,566/x
  3. Step 3: Cross multiply
    90,812,879.60x = 125,393,179.58 × 73,115,566
  4. Step 4: Simplify right side
    90,812,879.60x = 9,168,193,297,531,342
  5. Step 5: Solve for x
    x = 9,168,193,297,531,342/90,812,879.60
  6. Step 6: Final answer
    x = 100,956,971.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.