Home / 509,954,028.40-764,931,042.60-164,942,531.20

Finding the Fourth Proportional to 509,954,028.40, 764,931,042.60 and 164,942,531.20

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Solution

The fourth proportional to 509,954,028.40, 764,931,042.60 and 164,942,531.20 is: 247,413,796.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,954,028.40 : 764,931,042.60 = 164,942,531.20 : x
  2. Step 2: Convert to fraction form
    509,954,028.40/764,931,042.60 = 164,942,531.20/x
  3. Step 3: Cross multiply
    509,954,028.40x = 764,931,042.60 × 164,942,531.20
  4. Step 4: Simplify right side
    509,954,028.40x = 126,169,662,359,899,024
  5. Step 5: Solve for x
    x = 126,169,662,359,899,024/509,954,028.40
  6. Step 6: Final answer
    x = 247,413,796.80

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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.