Home / 520,273,470.79-780,334,240.74-151,709,383.27

Finding the Fourth Proportional to 520,273,470.79, 780,334,240.74 and 151,709,383.27

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Solution

The fourth proportional to 520,273,470.79, 780,334,240.74 and 151,709,383.27 is: 227,541,923.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,273,470.79 : 780,334,240.74 = 151,709,383.27 : x
  2. Step 2: Convert to fraction form
    520,273,470.79/780,334,240.74 = 151,709,383.27/x
  3. Step 3: Cross multiply
    520,273,470.79x = 780,334,240.74 × 151,709,383.27
  4. Step 4: Simplify right side
    520,273,470.79x = 118,384,026,407,129,120
  5. Step 5: Solve for x
    x = 118,384,026,407,129,120/520,273,470.79
  6. Step 6: Final answer
    x = 227,541,923.73

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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.