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Finding the Fourth Proportional to 391,203,040.40, 586,804,560.60 and 350,388,371.60

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Solution

The fourth proportional to 391,203,040.40, 586,804,560.60 and 350,388,371.60 is: 525,582,557.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,203,040.40 : 586,804,560.60 = 350,388,371.60 : x
  2. Step 2: Convert to fraction form
    391,203,040.40/586,804,560.60 = 350,388,371.60/x
  3. Step 3: Cross multiply
    391,203,040.40x = 586,804,560.60 × 350,388,371.60
  4. Step 4: Simplify right side
    391,203,040.40x = 205,609,494,436,087,552
  5. Step 5: Solve for x
    x = 205,609,494,436,087,552/391,203,040.40
  6. Step 6: Final answer
    x = 525,582,557.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.