Home / 288,281,460.78-397,823,498.91-156,121,383.42

Finding the Fourth Proportional to 288,281,460.78, 397,823,498.91 and 156,121,383.42

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Solution

The fourth proportional to 288,281,460.78, 397,823,498.91 and 156,121,383.42 is: 215,444,846.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,281,460.78 : 397,823,498.91 = 156,121,383.42 : x
  2. Step 2: Convert to fraction form
    288,281,460.78/397,823,498.91 = 156,121,383.42/x
  3. Step 3: Cross multiply
    288,281,460.78x = 397,823,498.91 × 156,121,383.42
  4. Step 4: Simplify right side
    288,281,460.78x = 62,108,755,006,814,064
  5. Step 5: Solve for x
    x = 62,108,755,006,814,064/288,281,460.78
  6. Step 6: Final answer
    x = 215,444,846.29

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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.