Home / 12,412,985,447.14-17,139,680,188.04-9,993,983,894.44

Finding the Fourth Proportional to 12,412,985,447.14, 17,139,680,188.04 and 9,993,983,894.44

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Solution

The fourth proportional to 12,412,985,447.14, 17,139,680,188.04 and 9,993,983,894.44 is: 13,799,555,995.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,412,985,447.14 : 17,139,680,188.04 = 9,993,983,894.44 : x
  2. Step 2: Convert to fraction form
    12,412,985,447.14/17,139,680,188.04 = 9,993,983,894.44/x
  3. Step 3: Cross multiply
    12,412,985,447.14x = 17,139,680,188.04 × 9,993,983,894.44
  4. Step 4: Simplify right side
    12,412,985,447.14x = 171,293,687,755,101,241,344
  5. Step 5: Solve for x
    x = 171,293,687,755,101,241,344/12,412,985,447.14
  6. Step 6: Final answer
    x = 13,799,555,995.98

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Double scale
Find fourth proportional to 12,412,985,448.14, 17,139,680,189.42 and 9,993,983,895.44
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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.