Home / 201,456,015.40-302,258,672.70-80,374,364.20

Finding the Fourth Proportional to 201,456,015.40, 302,258,672.70 and 80,374,364.20

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Solution

The fourth proportional to 201,456,015.40, 302,258,672.70 and 80,374,364.20 is: 120,591,329.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,456,015.40 : 302,258,672.70 = 80,374,364.20 : x
  2. Step 2: Convert to fraction form
    201,456,015.40/302,258,672.70 = 80,374,364.20/x
  3. Step 3: Cross multiply
    201,456,015.40x = 302,258,672.70 × 80,374,364.20
  4. Step 4: Simplify right side
    201,456,015.40x = 24,293,848,642,198,396
  5. Step 5: Solve for x
    x = 24,293,848,642,198,396/201,456,015.40
  6. Step 6: Final answer
    x = 120,591,329.05

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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.