Home / 201,204,020.40-301,806,030.60-139,982,017.20

Finding the Fourth Proportional to 201,204,020.40, 301,806,030.60 and 139,982,017.20

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Solution

The fourth proportional to 201,204,020.40, 301,806,030.60 and 139,982,017.20 is: 209,973,025.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,204,020.40 : 301,806,030.60 = 139,982,017.20 : x
  2. Step 2: Convert to fraction form
    201,204,020.40/301,806,030.60 = 139,982,017.20/x
  3. Step 3: Cross multiply
    201,204,020.40x = 301,806,030.60 × 139,982,017.20
  4. Step 4: Simplify right side
    201,204,020.40x = 42,247,416,966,512,928
  5. Step 5: Solve for x
    x = 42,247,416,966,512,928/201,204,020.40
  6. Step 6: Final answer
    x = 209,973,025.80

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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.