Home / 11,571,501,878.72-15,972,071,056.80-7,557,785,748.80

Finding the Fourth Proportional to 11,571,501,878.72, 15,972,071,056.80 and 7,557,785,748.80

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Solution

The fourth proportional to 11,571,501,878.72, 15,972,071,056.80 and 7,557,785,748.80 is: 10,431,963,998.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,571,501,878.72 : 15,972,071,056.80 = 7,557,785,748.80 : x
  2. Step 2: Convert to fraction form
    11,571,501,878.72/15,972,071,056.80 = 7,557,785,748.80/x
  3. Step 3: Cross multiply
    11,571,501,878.72x = 15,972,071,056.80 × 7,557,785,748.80
  4. Step 4: Simplify right side
    11,571,501,878.72x = 120,713,491,011,903,995,904
  5. Step 5: Solve for x
    x = 120,713,491,011,903,995,904/11,571,501,878.72
  6. Step 6: Final answer
    x = 10,431,963,998.89

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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.