Home / 378,888,037.68-522,865,487.43-205,047,781.68

Finding the Fourth Proportional to 378,888,037.68, 522,865,487.43 and 205,047,781.68

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Solution

The fourth proportional to 378,888,037.68, 522,865,487.43 and 205,047,781.68 is: 282,965,936.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,888,037.68 : 522,865,487.43 = 205,047,781.68 : x
  2. Step 2: Convert to fraction form
    378,888,037.68/522,865,487.43 = 205,047,781.68/x
  3. Step 3: Cross multiply
    378,888,037.68x = 522,865,487.43 × 205,047,781.68
  4. Step 4: Simplify right side
    378,888,037.68x = 107,212,408,314,553,424
  5. Step 5: Solve for x
    x = 107,212,408,314,553,424/378,888,037.68
  6. Step 6: Final answer
    x = 282,965,936.25

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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.