Home / 405,573,778.68-559,691,963.36-219,934,745.16

Finding the Fourth Proportional to 405,573,778.68, 559,691,963.36 and 219,934,745.16

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Solution

The fourth proportional to 405,573,778.68, 559,691,963.36 and 219,934,745.16 is: 303,510,029.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,573,778.68 : 559,691,963.36 = 219,934,745.16 : x
  2. Step 2: Convert to fraction form
    405,573,778.68/559,691,963.36 = 219,934,745.16/x
  3. Step 3: Cross multiply
    405,573,778.68x = 559,691,963.36 × 219,934,745.16
  4. Step 4: Simplify right side
    405,573,778.68x = 123,095,709,329,681,664
  5. Step 5: Solve for x
    x = 123,095,709,329,681,664/405,573,778.68
  6. Step 6: Final answer
    x = 303,510,029.00

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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.