Home / 31,143,238,540.97-42,976,780,988.82-18,282,671,698.16

Finding the Fourth Proportional to 31,143,238,540.97, 42,976,780,988.82 and 18,282,671,698.16

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Solution

The fourth proportional to 31,143,238,540.97, 42,976,780,988.82 and 18,282,671,698.16 is: 25,229,565,526.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,143,238,540.97 : 42,976,780,988.82 = 18,282,671,698.16 : x
  2. Step 2: Convert to fraction form
    31,143,238,540.97/42,976,780,988.82 = 18,282,671,698.16/x
  3. Step 3: Cross multiply
    31,143,238,540.97x = 42,976,780,988.82 × 18,282,671,698.16
  4. Step 4: Simplify right side
    31,143,238,540.97x = 785,730,377,462,320,201,728
  5. Step 5: Solve for x
    x = 785,730,377,462,320,201,728/31,143,238,540.97
  6. Step 6: Final answer
    x = 25,229,565,526.03

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Double scale
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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.