Home / 640,224,732.39-883,239,589.26-428,599,740.27

Finding the Fourth Proportional to 640,224,732.39, 883,239,589.26 and 428,599,740.27

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Solution

The fourth proportional to 640,224,732.39, 883,239,589.26 and 428,599,740.27 is: 591,286,527.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,224,732.39 : 883,239,589.26 = 428,599,740.27 : x
  2. Step 2: Convert to fraction form
    640,224,732.39/883,239,589.26 = 428,599,740.27/x
  3. Step 3: Cross multiply
    640,224,732.39x = 883,239,589.26 × 428,599,740.27
  4. Step 4: Simplify right side
    640,224,732.39x = 378,556,258,551,374,656
  5. Step 5: Solve for x
    x = 378,556,258,551,374,656/640,224,732.39
  6. Step 6: Final answer
    x = 591,286,527.06

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1.5x scale

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.