Home / 217,152,643.20-325,728,964.80-193,344,086.40

Finding the Fourth Proportional to 217,152,643.20, 325,728,964.80 and 193,344,086.40

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Solution

The fourth proportional to 217,152,643.20, 325,728,964.80 and 193,344,086.40 is: 290,016,129.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,152,643.20 : 325,728,964.80 = 193,344,086.40 : x
  2. Step 2: Convert to fraction form
    217,152,643.20/325,728,964.80 = 193,344,086.40/x
  3. Step 3: Cross multiply
    217,152,643.20x = 325,728,964.80 × 193,344,086.40
  4. Step 4: Simplify right side
    217,152,643.20x = 62,977,769,113,273,760
  5. Step 5: Solve for x
    x = 62,977,769,113,273,760/217,152,643.20
  6. Step 6: Final answer
    x = 290,016,129.60

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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.