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Finding the Fourth Proportional to 561,893,299.17, 842,456,868.33 and 285,010,606.92

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Solution

The fourth proportional to 561,893,299.17, 842,456,868.33 and 285,010,606.92 is: 427,321,599.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,893,299.17 : 842,456,868.33 = 285,010,606.92 : x
  2. Step 2: Convert to fraction form
    561,893,299.17/842,456,868.33 = 285,010,606.92/x
  3. Step 3: Cross multiply
    561,893,299.17x = 842,456,868.33 × 285,010,606.92
  4. Step 4: Simplify right side
    561,893,299.17x = 240,109,143,346,655,840
  5. Step 5: Solve for x
    x = 240,109,143,346,655,840/561,893,299.17
  6. Step 6: Final answer
    x = 427,321,599.49

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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.