Home / 90,812,880.60-125,393,180.94-73,115,566.98

Finding the Fourth Proportional to 90,812,880.60, 125,393,180.94 and 73,115,566.98

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Solution

The fourth proportional to 90,812,880.60, 125,393,180.94 and 73,115,566.98 is: 100,956,972.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,812,880.60 : 125,393,180.94 = 73,115,566.98 : x
  2. Step 2: Convert to fraction form
    90,812,880.60/125,393,180.94 = 73,115,566.98/x
  3. Step 3: Cross multiply
    90,812,880.60x = 125,393,180.94 × 73,115,566.98
  4. Step 4: Simplify right side
    90,812,880.60x = 9,168,193,519,853,830
  5. Step 5: Solve for x
    x = 9,168,193,519,853,830/90,812,880.60
  6. Step 6: Final answer
    x = 100,956,972.84

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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.