Home / 201,204,010.60-301,806,015.90-139,982,007.40

Finding the Fourth Proportional to 201,204,010.60, 301,806,015.90 and 139,982,007.40

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Solution

The fourth proportional to 201,204,010.60, 301,806,015.90 and 139,982,007.40 is: 209,973,011.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,204,010.60 : 301,806,015.90 = 139,982,007.40 : x
  2. Step 2: Convert to fraction form
    201,204,010.60/301,806,015.90 = 139,982,007.40/x
  3. Step 3: Cross multiply
    201,204,010.60x = 301,806,015.90 × 139,982,007.40
  4. Step 4: Simplify right side
    201,204,010.60x = 42,247,411,951,078,320
  5. Step 5: Solve for x
    x = 42,247,411,951,078,320/201,204,010.60
  6. Step 6: Final answer
    x = 209,973,011.10

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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.