Home / 10,647,143,164.03-14,616,117,286.30-9,139,151,508.80

Finding the Fourth Proportional to 10,647,143,164.03, 14,616,117,286.30 and 9,139,151,508.80

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Solution

The fourth proportional to 10,647,143,164.03, 14,616,117,286.30 and 9,139,151,508.80 is: 12,545,986,119.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,647,143,164.03 : 14,616,117,286.30 = 9,139,151,508.80 : x
  2. Step 2: Convert to fraction form
    10,647,143,164.03/14,616,117,286.30 = 9,139,151,508.80/x
  3. Step 3: Cross multiply
    10,647,143,164.03x = 14,616,117,286.30 × 9,139,151,508.80
  4. Step 4: Simplify right side
    10,647,143,164.03x = 133,578,910,349,834,534,912
  5. Step 5: Solve for x
    x = 133,578,910,349,834,534,912/10,647,143,164.03
  6. Step 6: Final answer
    x = 12,545,986,119.65

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.