Home / 355,085,061.68-489,996,241.08-196,305,671.39

Finding the Fourth Proportional to 355,085,061.68, 489,996,241.08 and 196,305,671.39

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Solution

The fourth proportional to 355,085,061.68, 489,996,241.08 and 196,305,671.39 is: 270,890,137.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,085,061.68 : 489,996,241.08 = 196,305,671.39 : x
  2. Step 2: Convert to fraction form
    355,085,061.68/489,996,241.08 = 196,305,671.39/x
  3. Step 3: Cross multiply
    355,085,061.68x = 489,996,241.08 × 196,305,671.39
  4. Step 4: Simplify right side
    355,085,061.68x = 96,189,041,081,335,712
  5. Step 5: Solve for x
    x = 96,189,041,081,335,712/355,085,061.68
  6. Step 6: Final answer
    x = 270,890,137.22

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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.