Home / 209,952,243.40-314,928,365.10-73,619,912.20

Finding the Fourth Proportional to 209,952,243.40, 314,928,365.10 and 73,619,912.20

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Solution

The fourth proportional to 209,952,243.40, 314,928,365.10 and 73,619,912.20 is: 110,429,868.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,952,243.40 : 314,928,365.10 = 73,619,912.20 : x
  2. Step 2: Convert to fraction form
    209,952,243.40/314,928,365.10 = 73,619,912.20/x
  3. Step 3: Cross multiply
    209,952,243.40x = 314,928,365.10 × 73,619,912.20
  4. Step 4: Simplify right side
    209,952,243.40x = 23,184,998,587,951,548
  5. Step 5: Solve for x
    x = 23,184,998,587,951,548/209,952,243.40
  6. Step 6: Final answer
    x = 110,429,868.30

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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.