Home / 143,400,480,284.52-197,910,015,767.16-81,616,071,935.52

Finding the Fourth Proportional to 143,400,480,284.52, 197,910,015,767.16 and 81,616,071,935.52

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Solution

The fourth proportional to 143,400,480,284.52, 197,910,015,767.16 and 81,616,071,935.52 is: 112,640,055,678.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,400,480,284.52 : 197,910,015,767.16 = 81,616,071,935.52 : x
  2. Step 2: Convert to fraction form
    143,400,480,284.52/197,910,015,767.16 = 81,616,071,935.52/x
  3. Step 3: Cross multiply
    143,400,480,284.52x = 197,910,015,767.16 × 81,616,071,935.52
  4. Step 4: Simplify right side
    143,400,480,284.52x = 16,152,638,083,612,429,778,944
  5. Step 5: Solve for x
    x = 16,152,638,083,612,429,778,944/143,400,480,284.52
  6. Step 6: Final answer
    x = 112,640,055,678.78

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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.