Home / 221,168,813.60-331,753,220.40-140,447,712.80

Finding the Fourth Proportional to 221,168,813.60, 331,753,220.40 and 140,447,712.80

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Solution

The fourth proportional to 221,168,813.60, 331,753,220.40 and 140,447,712.80 is: 210,671,569.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,168,813.60 : 331,753,220.40 = 140,447,712.80 : x
  2. Step 2: Convert to fraction form
    221,168,813.60/331,753,220.40 = 140,447,712.80/x
  3. Step 3: Cross multiply
    221,168,813.60x = 331,753,220.40 × 140,447,712.80
  4. Step 4: Simplify right side
    221,168,813.60x = 46,593,981,019,214,304
  5. Step 5: Solve for x
    x = 46,593,981,019,214,304/221,168,813.60
  6. Step 6: Final answer
    x = 210,671,569.20

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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.