Home / 208,215,301.32-287,337,142.53-115,401,801.24

Finding the Fourth Proportional to 208,215,301.32, 287,337,142.53 and 115,401,801.24

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Solution

The fourth proportional to 208,215,301.32, 287,337,142.53 and 115,401,801.24 is: 159,254,500.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,215,301.32 : 287,337,142.53 = 115,401,801.24 : x
  2. Step 2: Convert to fraction form
    208,215,301.32/287,337,142.53 = 115,401,801.24/x
  3. Step 3: Cross multiply
    208,215,301.32x = 287,337,142.53 × 115,401,801.24
  4. Step 4: Simplify right side
    208,215,301.32x = 33,159,223,811,116,604
  5. Step 5: Solve for x
    x = 33,159,223,811,116,604/208,215,301.32
  6. Step 6: Final answer
    x = 159,254,500.51

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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.