Home / 143,400,479,963.89-197,910,015,324.55-81,616,071,613.50

Finding the Fourth Proportional to 143,400,479,963.89, 197,910,015,324.55 and 81,616,071,613.50

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Solution

The fourth proportional to 143,400,479,963.89, 197,910,015,324.55 and 81,616,071,613.50 is: 112,640,055,234.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,400,479,963.89 : 197,910,015,324.55 = 81,616,071,613.50 : x
  2. Step 2: Convert to fraction form
    143,400,479,963.89/197,910,015,324.55 = 81,616,071,613.50/x
  3. Step 3: Cross multiply
    143,400,479,963.89x = 197,910,015,324.55 × 81,616,071,613.50
  4. Step 4: Simplify right side
    143,400,479,963.89x = 16,152,637,983,757,355,188,224
  5. Step 5: Solve for x
    x = 16,152,637,983,757,355,188,224/143,400,479,963.89
  6. Step 6: Final answer
    x = 112,640,055,234.30

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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.