Home / 613,347,899,457.92-920,040,592,157.51-210,425,717,866.86

Finding the Fourth Proportional to 613,347,899,457.92, 920,040,592,157.51 and 210,425,717,866.86

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Solution

The fourth proportional to 613,347,899,457.92, 920,040,592,157.51 and 210,425,717,866.86 is: 315,645,007,087.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,347,899,457.92 : 920,040,592,157.51 = 210,425,717,866.86 : x
  2. Step 2: Convert to fraction form
    613,347,899,457.92/920,040,592,157.51 = 210,425,717,866.86/x
  3. Step 3: Cross multiply
    613,347,899,457.92x = 920,040,592,157.51 × 210,425,717,866.86
  4. Step 4: Simplify right side
    613,347,899,457.92x = 193,600,202,071,394,979,151,872
  5. Step 5: Solve for x
    x = 193,600,202,071,394,979,151,872/613,347,899,457.92
  6. Step 6: Final answer
    x = 315,645,007,087.33

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.