Home / 257,504,308.80-386,256,463.20-121,455,412.80

Finding the Fourth Proportional to 257,504,308.80, 386,256,463.20 and 121,455,412.80

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Solution

The fourth proportional to 257,504,308.80, 386,256,463.20 and 121,455,412.80 is: 182,183,119.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,504,308.80 : 386,256,463.20 = 121,455,412.80 : x
  2. Step 2: Convert to fraction form
    257,504,308.80/386,256,463.20 = 121,455,412.80/x
  3. Step 3: Cross multiply
    257,504,308.80x = 386,256,463.20 × 121,455,412.80
  4. Step 4: Simplify right side
    257,504,308.80x = 46,912,938,184,624,008
  5. Step 5: Solve for x
    x = 46,912,938,184,624,008/257,504,308.80
  6. Step 6: Final answer
    x = 182,183,119.20

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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.