Home / 320,253,320.88-480,207,315.24-172,779,925.68

Finding the Fourth Proportional to 320,253,320.88, 480,207,315.24 and 172,779,925.68

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Solution

The fourth proportional to 320,253,320.88, 480,207,315.24 and 172,779,925.68 is: 259,076,733.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,253,320.88 : 480,207,315.24 = 172,779,925.68 : x
  2. Step 2: Convert to fraction form
    320,253,320.88/480,207,315.24 = 172,779,925.68/x
  3. Step 3: Cross multiply
    320,253,320.88x = 480,207,315.24 × 172,779,925.68
  4. Step 4: Simplify right side
    320,253,320.88x = 82,970,184,238,159,536
  5. Step 5: Solve for x
    x = 82,970,184,238,159,536/320,253,320.88
  6. Step 6: Final answer
    x = 259,076,733.41

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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.