Home / 687,239,002,580.64-948,419,217,773.01-382,744,609,735.92

Finding the Fourth Proportional to 687,239,002,580.64, 948,419,217,773.01 and 382,744,609,735.92

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Solution

The fourth proportional to 687,239,002,580.64, 948,419,217,773.01 and 382,744,609,735.92 is: 528,203,931,979.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,239,002,580.64 : 948,419,217,773.01 = 382,744,609,735.92 : x
  2. Step 2: Convert to fraction form
    687,239,002,580.64/948,419,217,773.01 = 382,744,609,735.92/x
  3. Step 3: Cross multiply
    687,239,002,580.64x = 948,419,217,773.01 × 382,744,609,735.92
  4. Step 4: Simplify right side
    687,239,002,580.64x = 363,002,343,372,577,245,757,440
  5. Step 5: Solve for x
    x = 363,002,343,372,577,245,757,440/687,239,002,580.64
  6. Step 6: Final answer
    x = 528,203,931,979.23

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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.