Home / 200,831,792.20-301,105,970.70-91,709,240.20

Finding the Fourth Proportional to 200,831,792.20, 301,105,970.70 and 91,709,240.20

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Solution

The fourth proportional to 200,831,792.20, 301,105,970.70 and 91,709,240.20 is: 137,499,145.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,831,792.20 : 301,105,970.70 = 91,709,240.20 : x
  2. Step 2: Convert to fraction form
    200,831,792.20/301,105,970.70 = 91,709,240.20/x
  3. Step 3: Cross multiply
    200,831,792.20x = 301,105,970.70 × 91,709,240.20
  4. Step 4: Simplify right side
    200,831,792.20x = 27,614,199,792,580,460
  5. Step 5: Solve for x
    x = 27,614,199,792,580,460/200,831,792.20
  6. Step 6: Final answer
    x = 137,499,145.38

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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.