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Finding the Fourth Proportional to 209,952,485.70, 314,928,728.55 and 202,299,735.30

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Solution

The fourth proportional to 209,952,485.70, 314,928,728.55 and 202,299,735.30 is: 303,449,602.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,952,485.70 : 314,928,728.55 = 202,299,735.30 : x
  2. Step 2: Convert to fraction form
    209,952,485.70/314,928,728.55 = 202,299,735.30/x
  3. Step 3: Cross multiply
    209,952,485.70x = 314,928,728.55 × 202,299,735.30
  4. Step 4: Simplify right side
    209,952,485.70x = 63,709,998,424,030,560
  5. Step 5: Solve for x
    x = 63,709,998,424,030,560/209,952,485.70
  6. Step 6: Final answer
    x = 303,449,602.95

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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.