Home / 143,400,479,969.39-197,910,015,332.14-81,616,071,619

Finding the Fourth Proportional to 143,400,479,969.39, 197,910,015,332.14 and 81,616,071,619

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Solution

The fourth proportional to 143,400,479,969.39, 197,910,015,332.14 and 81,616,071,619 is: 112,640,055,241.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,400,479,969.39 : 197,910,015,332.14 = 81,616,071,619 : x
  2. Step 2: Convert to fraction form
    143,400,479,969.39/197,910,015,332.14 = 81,616,071,619/x
  3. Step 3: Cross multiply
    143,400,479,969.39x = 197,910,015,332.14 × 81,616,071,619
  4. Step 4: Simplify right side
    143,400,479,969.39x = 16,152,637,985,465,328,205,824
  5. Step 5: Solve for x
    x = 16,152,637,985,465,328,205,824/143,400,479,969.39
  6. Step 6: Final answer
    x = 112,640,055,241.89

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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.