Home / 319,059,407.45-440,301,556.15-172,381,691.45

Finding the Fourth Proportional to 319,059,407.45, 440,301,556.15 and 172,381,691.45

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Solution

The fourth proportional to 319,059,407.45, 440,301,556.15 and 172,381,691.45 is: 237,886,503.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,059,407.45 : 440,301,556.15 = 172,381,691.45 : x
  2. Step 2: Convert to fraction form
    319,059,407.45/440,301,556.15 = 172,381,691.45/x
  3. Step 3: Cross multiply
    319,059,407.45x = 440,301,556.15 × 172,381,691.45
  4. Step 4: Simplify right side
    319,059,407.45x = 75,899,926,997,873,936
  5. Step 5: Solve for x
    x = 75,899,926,997,873,936/319,059,407.45
  6. Step 6: Final answer
    x = 237,886,503.97

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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.