Home / 509,954,010.40-764,931,015.60-164,942,513.20

Finding the Fourth Proportional to 509,954,010.40, 764,931,015.60 and 164,942,513.20

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Solution

The fourth proportional to 509,954,010.40, 764,931,015.60 and 164,942,513.20 is: 247,413,769.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,954,010.40 : 764,931,015.60 = 164,942,513.20 : x
  2. Step 2: Convert to fraction form
    509,954,010.40/764,931,015.60 = 164,942,513.20/x
  3. Step 3: Cross multiply
    509,954,010.40x = 764,931,015.60 × 164,942,513.20
  4. Step 4: Simplify right side
    509,954,010.40x = 126,169,644,137,692,400
  5. Step 5: Solve for x
    x = 126,169,644,137,692,400/509,954,010.40
  6. Step 6: Final answer
    x = 247,413,769.80

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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.