Home / 78,813,960,279.52-108,763,230,833.04-42,684,994,383.52

Finding the Fourth Proportional to 78,813,960,279.52, 108,763,230,833.04 and 42,684,994,383.52

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Solution

The fourth proportional to 78,813,960,279.52, 108,763,230,833.04 and 42,684,994,383.52 is: 58,905,273,644.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,813,960,279.52 : 108,763,230,833.04 = 42,684,994,383.52 : x
  2. Step 2: Convert to fraction form
    78,813,960,279.52/108,763,230,833.04 = 42,684,994,383.52/x
  3. Step 3: Cross multiply
    78,813,960,279.52x = 108,763,230,833.04 × 42,684,994,383.52
  4. Step 4: Simplify right side
    78,813,960,279.52x = 4,642,557,897,241,800,998,912
  5. Step 5: Solve for x
    x = 4,642,557,897,241,800,998,912/78,813,960,279.52
  6. Step 6: Final answer
    x = 58,905,273,644.12

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1.5x scale

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.