Home / 12,181,865,859.76-16,816,483,248.80-7,672,372,264.84

Finding the Fourth Proportional to 12,181,865,859.76, 16,816,483,248.80 and 7,672,372,264.84

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Solution

The fourth proportional to 12,181,865,859.76, 16,816,483,248.80 and 7,672,372,264.84 is: 10,591,342,997.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,181,865,859.76 : 16,816,483,248.80 = 7,672,372,264.84 : x
  2. Step 2: Convert to fraction form
    12,181,865,859.76/16,816,483,248.80 = 7,672,372,264.84/x
  3. Step 3: Cross multiply
    12,181,865,859.76x = 16,816,483,248.80 × 7,672,372,264.84
  4. Step 4: Simplify right side
    12,181,865,859.76x = 129,022,319,670,239,576,064
  5. Step 5: Solve for x
    x = 129,022,319,670,239,576,064/12,181,865,859.76
  6. Step 6: Final answer
    x = 10,591,342,997.50

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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.