Home / 11,881,163,218.90-16,379,621,911.54-9,478,002,254.22

Finding the Fourth Proportional to 11,881,163,218.90, 16,379,621,911.54 and 9,478,002,254.22

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Solution

The fourth proportional to 11,881,163,218.90, 16,379,621,911.54 and 9,478,002,254.22 is: 13,066,573,578.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,881,163,218.90 : 16,379,621,911.54 = 9,478,002,254.22 : x
  2. Step 2: Convert to fraction form
    11,881,163,218.90/16,379,621,911.54 = 9,478,002,254.22/x
  3. Step 3: Cross multiply
    11,881,163,218.90x = 16,379,621,911.54 × 9,478,002,254.22
  4. Step 4: Simplify right side
    11,881,163,218.90x = 155,246,093,400,847,417,344
  5. Step 5: Solve for x
    x = 155,246,093,400,847,417,344/11,881,163,218.90
  6. Step 6: Final answer
    x = 13,066,573,578.75

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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.