Home / 31,485,997,919.36-43,451,193,347.88-18,799,842,175.04

Finding the Fourth Proportional to 31,485,997,919.36, 43,451,193,347.88 and 18,799,842,175.04

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Solution

The fourth proportional to 31,485,997,919.36, 43,451,193,347.88 and 18,799,842,175.04 is: 25,944,090,428.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,485,997,919.36 : 43,451,193,347.88 = 18,799,842,175.04 : x
  2. Step 2: Convert to fraction form
    31,485,997,919.36/43,451,193,347.88 = 18,799,842,175.04/x
  3. Step 3: Cross multiply
    31,485,997,919.36x = 43,451,193,347.88 × 18,799,842,175.04
  4. Step 4: Simplify right side
    31,485,997,919.36x = 816,875,577,257,291,939,840
  5. Step 5: Solve for x
    x = 816,875,577,257,291,939,840/31,485,997,919.36
  6. Step 6: Final answer
    x = 25,944,090,428.69

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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.