Home / 15,820,723,090.05-21,822,667,003.51-9,385,987,382.70

Finding the Fourth Proportional to 15,820,723,090.05, 21,822,667,003.51 and 9,385,987,382.70

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Solution

The fourth proportional to 15,820,723,090.05, 21,822,667,003.51 and 9,385,987,382.70 is: 12,946,770,889.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,820,723,090.05 : 21,822,667,003.51 = 9,385,987,382.70 : x
  2. Step 2: Convert to fraction form
    15,820,723,090.05/21,822,667,003.51 = 9,385,987,382.70/x
  3. Step 3: Cross multiply
    15,820,723,090.05x = 21,822,667,003.51 × 9,385,987,382.70
  4. Step 4: Simplify right side
    15,820,723,090.05x = 204,827,277,151,808,487,424
  5. Step 5: Solve for x
    x = 204,827,277,151,808,487,424/15,820,723,090.05
  6. Step 6: Final answer
    x = 12,946,770,889.42

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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.