Home / 141,906,005.40-212,859,008.10-139,514,520.90

Finding the Fourth Proportional to 141,906,005.40, 212,859,008.10 and 139,514,520.90

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Solution

The fourth proportional to 141,906,005.40, 212,859,008.10 and 139,514,520.90 is: 209,271,781.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,906,005.40 : 212,859,008.10 = 139,514,520.90 : x
  2. Step 2: Convert to fraction form
    141,906,005.40/212,859,008.10 = 139,514,520.90/x
  3. Step 3: Cross multiply
    141,906,005.40x = 212,859,008.10 × 139,514,520.90
  4. Step 4: Simplify right side
    141,906,005.40x = 29,696,922,534,320,720
  5. Step 5: Solve for x
    x = 29,696,922,534,320,720/141,906,005.40
  6. Step 6: Final answer
    x = 209,271,781.35

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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.