Home / 672,708,979,214.70-928,344,179,648.64-383,691,871,859.76

Finding the Fourth Proportional to 672,708,979,214.70, 928,344,179,648.64 and 383,691,871,859.76

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Solution

The fourth proportional to 672,708,979,214.70, 928,344,179,648.64 and 383,691,871,859.76 is: 529,498,084,647.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,708,979,214.70 : 928,344,179,648.64 = 383,691,871,859.76 : x
  2. Step 2: Convert to fraction form
    672,708,979,214.70/928,344,179,648.64 = 383,691,871,859.76/x
  3. Step 3: Cross multiply
    672,708,979,214.70x = 928,344,179,648.64 × 383,691,871,859.76
  4. Step 4: Simplify right side
    672,708,979,214.70x = 356,198,116,019,500,027,478,016
  5. Step 5: Solve for x
    x = 356,198,116,019,500,027,478,016/672,708,979,214.70
  6. Step 6: Final answer
    x = 529,498,084,647.71

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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.