Home / 257,915,468.45-386,924,261.30-73,684,513.01

Finding the Fourth Proportional to 257,915,468.45, 386,924,261.30 and 73,684,513.01

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Solution

The fourth proportional to 257,915,468.45, 386,924,261.30 and 73,684,513.01 is: 110,541,356.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,915,468.45 : 386,924,261.30 = 73,684,513.01 : x
  2. Step 2: Convert to fraction form
    257,915,468.45/386,924,261.30 = 73,684,513.01/x
  3. Step 3: Cross multiply
    257,915,468.45x = 386,924,261.30 × 73,684,513.01
  4. Step 4: Simplify right side
    257,915,468.45x = 28,510,325,765,276,072
  5. Step 5: Solve for x
    x = 28,510,325,765,276,072/257,915,468.45
  6. Step 6: Final answer
    x = 110,541,356.58

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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.