Home / 12,181,865,890.17-16,816,483,290.78-7,672,372,295.34

Finding the Fourth Proportional to 12,181,865,890.17, 16,816,483,290.78 and 7,672,372,295.34

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Solution

The fourth proportional to 12,181,865,890.17, 16,816,483,290.78 and 7,672,372,295.34 is: 10,591,343,039.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,181,865,890.17 : 16,816,483,290.78 = 7,672,372,295.34 : x
  2. Step 2: Convert to fraction form
    12,181,865,890.17/16,816,483,290.78 = 7,672,372,295.34/x
  3. Step 3: Cross multiply
    12,181,865,890.17x = 16,816,483,290.78 × 7,672,372,295.34
  4. Step 4: Simplify right side
    12,181,865,890.17x = 129,022,320,505,228,509,184
  5. Step 5: Solve for x
    x = 129,022,320,505,228,509,184/12,181,865,890.17
  6. Step 6: Final answer
    x = 10,591,343,039.60

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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.