Home / 196,819,723.20-295,229,584.80-128,871,998.40

Finding the Fourth Proportional to 196,819,723.20, 295,229,584.80 and 128,871,998.40

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Solution

The fourth proportional to 196,819,723.20, 295,229,584.80 and 128,871,998.40 is: 193,307,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,819,723.20 : 295,229,584.80 = 128,871,998.40 : x
  2. Step 2: Convert to fraction form
    196,819,723.20/295,229,584.80 = 128,871,998.40/x
  3. Step 3: Cross multiply
    196,819,723.20x = 295,229,584.80 × 128,871,998.40
  4. Step 4: Simplify right side
    196,819,723.20x = 38,046,826,579,978,264
  5. Step 5: Solve for x
    x = 38,046,826,579,978,264/196,819,723.20
  6. Step 6: Final answer
    x = 193,307,997.60

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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.