Home / 143,400,502,384.66-197,910,046,215.34-81,616,094,020.78

Finding the Fourth Proportional to 143,400,502,384.66, 197,910,046,215.34 and 81,616,094,020.78

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Solution

The fourth proportional to 143,400,502,384.66, 197,910,046,215.34 and 81,616,094,020.78 is: 112,640,086,129.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,400,502,384.66 : 197,910,046,215.34 = 81,616,094,020.78 : x
  2. Step 2: Convert to fraction form
    143,400,502,384.66/197,910,046,215.34 = 81,616,094,020.78/x
  3. Step 3: Cross multiply
    143,400,502,384.66x = 197,910,046,215.34 × 81,616,094,020.78
  4. Step 4: Simplify right side
    143,400,502,384.66x = 16,152,644,939,568,103,030,784
  5. Step 5: Solve for x
    x = 16,152,644,939,568,103,030,784/143,400,502,384.66
  6. Step 6: Final answer
    x = 112,640,086,129.13

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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.