Home / 201,192,341.40-301,788,512.10-139,970,338.20

Finding the Fourth Proportional to 201,192,341.40, 301,788,512.10 and 139,970,338.20

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Solution

The fourth proportional to 201,192,341.40, 301,788,512.10 and 139,970,338.20 is: 209,955,507.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,192,341.40 : 301,788,512.10 = 139,970,338.20 : x
  2. Step 2: Convert to fraction form
    201,192,341.40/301,788,512.10 = 139,970,338.20/x
  3. Step 3: Cross multiply
    201,192,341.40x = 301,788,512.10 × 139,970,338.20
  4. Step 4: Simplify right side
    201,192,341.40x = 42,241,440,103,511,792
  5. Step 5: Solve for x
    x = 42,241,440,103,511,792/201,192,341.40
  6. Step 6: Final answer
    x = 209,955,507.30

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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.