Home / 288,151,530.78-397,649,245.72-155,992,527.45

Finding the Fourth Proportional to 288,151,530.78, 397,649,245.72 and 155,992,527.45

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Solution

The fourth proportional to 288,151,530.78, 397,649,245.72 and 155,992,527.45 is: 215,269,760.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,151,530.78 : 397,649,245.72 = 155,992,527.45 : x
  2. Step 2: Convert to fraction form
    288,151,530.78/397,649,245.72 = 155,992,527.45/x
  3. Step 3: Cross multiply
    288,151,530.78x = 397,649,245.72 × 155,992,527.45
  4. Step 4: Simplify right side
    288,151,530.78x = 62,030,310,878,643,880
  5. Step 5: Solve for x
    x = 62,030,310,878,643,880/288,151,530.78
  6. Step 6: Final answer
    x = 215,269,760.01

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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.