Home / 478,675,553.72-716,540,678.28-312,320,856.83

Finding the Fourth Proportional to 478,675,553.72, 716,540,678.28 and 312,320,856.83

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Solution

The fourth proportional to 478,675,553.72, 716,540,678.28 and 312,320,856.83 is: 467,520,425.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,675,553.72 : 716,540,678.28 = 312,320,856.83 : x
  2. Step 2: Convert to fraction form
    478,675,553.72/716,540,678.28 = 312,320,856.83/x
  3. Step 3: Cross multiply
    478,675,553.72x = 716,540,678.28 × 312,320,856.83
  4. Step 4: Simplify right side
    478,675,553.72x = 223,790,598,590,376,256
  5. Step 5: Solve for x
    x = 223,790,598,590,376,256/478,675,553.72
  6. Step 6: Final answer
    x = 467,520,425.59

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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.