Home / 208,215,344.88-287,337,202.56-115,401,844.80

Finding the Fourth Proportional to 208,215,344.88, 287,337,202.56 and 115,401,844.80

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Solution

The fourth proportional to 208,215,344.88, 287,337,202.56 and 115,401,844.80 is: 159,254,560.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,215,344.88 : 287,337,202.56 = 115,401,844.80 : x
  2. Step 2: Convert to fraction form
    208,215,344.88/287,337,202.56 = 115,401,844.80/x
  3. Step 3: Cross multiply
    208,215,344.88x = 287,337,202.56 × 115,401,844.80
  4. Step 4: Simplify right side
    208,215,344.88x = 33,159,243,255,095,284
  5. Step 5: Solve for x
    x = 33,159,243,255,095,284/208,215,344.88
  6. Step 6: Final answer
    x = 159,254,560.58

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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.