Home / 681,544,433.50-940,531,278.32-368,278,638.54

Finding the Fourth Proportional to 681,544,433.50, 940,531,278.32 and 368,278,638.54

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Solution

The fourth proportional to 681,544,433.50, 940,531,278.32 and 368,278,638.54 is: 508,224,499.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,544,433.50 : 940,531,278.32 = 368,278,638.54 : x
  2. Step 2: Convert to fraction form
    681,544,433.50/940,531,278.32 = 368,278,638.54/x
  3. Step 3: Cross multiply
    681,544,433.50x = 940,531,278.32 × 368,278,638.54
  4. Step 4: Simplify right side
    681,544,433.50x = 346,377,578,683,975,488
  5. Step 5: Solve for x
    x = 346,377,578,683,975,488/681,544,433.50
  6. Step 6: Final answer
    x = 508,224,499.62

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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.