Home / 321,040,672-443,021,301.12-181,812,430.42

Finding the Fourth Proportional to 321,040,672, 443,021,301.12 and 181,812,430.42

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Solution

The fourth proportional to 321,040,672, 443,021,301.12 and 181,812,430.42 is: 250,892,757.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,040,672 : 443,021,301.12 = 181,812,430.42 : x
  2. Step 2: Convert to fraction form
    321,040,672/443,021,301.12 = 181,812,430.42/x
  3. Step 3: Cross multiply
    321,040,672x = 443,021,301.12 × 181,812,430.42
  4. Step 4: Simplify right side
    321,040,672x = 80,546,779,484,457,856
  5. Step 5: Solve for x
    x = 80,546,779,484,457,856/321,040,672
  6. Step 6: Final answer
    x = 250,892,757.55

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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.