Home / 397,887,351.33-549,071,668.10-228,369,491.36

Finding the Fourth Proportional to 397,887,351.33, 549,071,668.10 and 228,369,491.36

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Solution

The fourth proportional to 397,887,351.33, 549,071,668.10 and 228,369,491.36 is: 315,142,507.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,887,351.33 : 549,071,668.10 = 228,369,491.36 : x
  2. Step 2: Convert to fraction form
    397,887,351.33/549,071,668.10 = 228,369,491.36/x
  3. Step 3: Cross multiply
    397,887,351.33x = 549,071,668.10 × 228,369,491.36
  4. Step 4: Simplify right side
    397,887,351.33x = 125,391,217,561,438,384
  5. Step 5: Solve for x
    x = 125,391,217,561,438,384/397,887,351.33
  6. Step 6: Final answer
    x = 315,142,507.40

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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.