Home / 13,580,715,902.09-18,741,388,809.08-7,559,091,677.07

Finding the Fourth Proportional to 13,580,715,902.09, 18,741,388,809.08 and 7,559,091,677.07

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Solution

The fourth proportional to 13,580,715,902.09, 18,741,388,809.08 and 7,559,091,677.07 is: 10,431,546,995.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,580,715,902.09 : 18,741,388,809.08 = 7,559,091,677.07 : x
  2. Step 2: Convert to fraction form
    13,580,715,902.09/18,741,388,809.08 = 7,559,091,677.07/x
  3. Step 3: Cross multiply
    13,580,715,902.09x = 18,741,388,809.08 × 7,559,091,677.07
  4. Step 4: Simplify right side
    13,580,715,902.09x = 141,667,876,163,464,593,408
  5. Step 5: Solve for x
    x = 141,667,876,163,464,593,408/13,580,715,902.09
  6. Step 6: Final answer
    x = 10,431,546,995.38

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Double scale
Find fourth proportional to 13,580,715,903.09, 18,741,388,810.46 and 7,559,091,678.07
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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.