Home / 129,310,015,965.15-193,965,023,947.73-76,414,205,200.35

Finding the Fourth Proportional to 129,310,015,965.15, 193,965,023,947.73 and 76,414,205,200.35

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Solution

The fourth proportional to 129,310,015,965.15, 193,965,023,947.73 and 76,414,205,200.35 is: 114,621,307,800.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,310,015,965.15 : 193,965,023,947.73 = 76,414,205,200.35 : x
  2. Step 2: Convert to fraction form
    129,310,015,965.15/193,965,023,947.73 = 76,414,205,200.35/x
  3. Step 3: Cross multiply
    129,310,015,965.15x = 193,965,023,947.73 × 76,414,205,200.35
  4. Step 4: Simplify right side
    129,310,015,965.15x = 14,821,683,141,632,644,349,952
  5. Step 5: Solve for x
    x = 14,821,683,141,632,644,349,952/129,310,015,965.15
  6. Step 6: Final answer
    x = 114,621,307,800.53

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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.