Home / 478,600,710.44-661,013,789.94-321,695,412.39

Finding the Fourth Proportional to 478,600,710.44, 661,013,789.94 and 321,695,412.39

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Solution

The fourth proportional to 478,600,710.44, 661,013,789.94 and 321,695,412.39 is: 444,305,867.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,600,710.44 : 661,013,789.94 = 321,695,412.39 : x
  2. Step 2: Convert to fraction form
    478,600,710.44/661,013,789.94 = 321,695,412.39/x
  3. Step 3: Cross multiply
    478,600,710.44x = 661,013,789.94 × 321,695,412.39
  4. Step 4: Simplify right side
    478,600,710.44x = 212,645,103,750,225,152
  5. Step 5: Solve for x
    x = 212,645,103,750,225,152/478,600,710.44
  6. Step 6: Final answer
    x = 444,305,867.32

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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.