Home / 160,686,105.48-221,749,255.22-90,137,354.31

Finding the Fourth Proportional to 160,686,105.48, 221,749,255.22 and 90,137,354.31

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Solution

The fourth proportional to 160,686,105.48, 221,749,255.22 and 90,137,354.31 is: 124,390,911.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,686,105.48 : 221,749,255.22 = 90,137,354.31 : x
  2. Step 2: Convert to fraction form
    160,686,105.48/221,749,255.22 = 90,137,354.31/x
  3. Step 3: Cross multiply
    160,686,105.48x = 221,749,255.22 × 90,137,354.31
  4. Step 4: Simplify right side
    160,686,105.48x = 19,987,891,185,293,072
  5. Step 5: Solve for x
    x = 19,987,891,185,293,072/160,686,105.48
  6. Step 6: Final answer
    x = 124,390,911.87

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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.