Home / 412,393,671.68-618,181,906.80-193,652,445.36

Finding the Fourth Proportional to 412,393,671.68, 618,181,906.80 and 193,652,445.36

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Solution

The fourth proportional to 412,393,671.68, 618,181,906.80 and 193,652,445.36 is: 290,286,796.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,393,671.68 : 618,181,906.80 = 193,652,445.36 : x
  2. Step 2: Convert to fraction form
    412,393,671.68/618,181,906.80 = 193,652,445.36/x
  3. Step 3: Cross multiply
    412,393,671.68x = 618,181,906.80 × 193,652,445.36
  4. Step 4: Simplify right side
    412,393,671.68x = 119,712,437,929,127,616
  5. Step 5: Solve for x
    x = 119,712,437,929,127,616/412,393,671.68
  6. Step 6: Final answer
    x = 290,286,796.69

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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.