Home / 40,500,806.60-55,891,261.24-21,915,946.87

Finding the Fourth Proportional to 40,500,806.60, 55,891,261.24 and 21,915,946.87

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Solution

The fourth proportional to 40,500,806.60, 55,891,261.24 and 21,915,946.87 is: 30,244,086.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,500,806.60 : 55,891,261.24 = 21,915,946.87 : x
  2. Step 2: Convert to fraction form
    40,500,806.60/55,891,261.24 = 21,915,946.87/x
  3. Step 3: Cross multiply
    40,500,806.60x = 55,891,261.24 × 21,915,946.87
  4. Step 4: Simplify right side
    40,500,806.60x = 1,224,909,911,638,612.25
  5. Step 5: Solve for x
    x = 1,224,909,911,638,612.25/40,500,806.60
  6. Step 6: Final answer
    x = 30,244,086.83

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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.