Home / 60,115,292.91-90,174,514.82-20,723,129.51

Finding the Fourth Proportional to 60,115,292.91, 90,174,514.82 and 20,723,129.51

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Solution

The fourth proportional to 60,115,292.91, 90,174,514.82 and 20,723,129.51 is: 31,085,237.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,115,292.91 : 90,174,514.82 = 20,723,129.51 : x
  2. Step 2: Convert to fraction form
    60,115,292.91/90,174,514.82 = 20,723,129.51/x
  3. Step 3: Cross multiply
    60,115,292.91x = 90,174,514.82 × 20,723,129.51
  4. Step 4: Simplify right side
    60,115,292.91x = 1,868,698,148,561,786
  5. Step 5: Solve for x
    x = 1,868,698,148,561,786/60,115,292.91
  6. Step 6: Final answer
    x = 31,085,237.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.