Home / 257,915,467.95-386,924,260.55-73,684,512.51

Finding the Fourth Proportional to 257,915,467.95, 386,924,260.55 and 73,684,512.51

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Solution

The fourth proportional to 257,915,467.95, 386,924,260.55 and 73,684,512.51 is: 110,541,355.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,915,467.95 : 386,924,260.55 = 73,684,512.51 : x
  2. Step 2: Convert to fraction form
    257,915,467.95/386,924,260.55 = 73,684,512.51/x
  3. Step 3: Cross multiply
    257,915,467.95x = 386,924,260.55 × 73,684,512.51
  4. Step 4: Simplify right side
    257,915,467.95x = 28,510,325,516,550,556
  5. Step 5: Solve for x
    x = 28,510,325,516,550,556/257,915,467.95
  6. Step 6: Final answer
    x = 110,541,355.83

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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.