Home / 193,471,697.51-289,920,567.89-142,102,610.45

Finding the Fourth Proportional to 193,471,697.51, 289,920,567.89 and 142,102,610.45

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Solution

The fourth proportional to 193,471,697.51, 289,920,567.89 and 142,102,610.45 is: 212,943,133.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,471,697.51 : 289,920,567.89 = 142,102,610.45 : x
  2. Step 2: Convert to fraction form
    193,471,697.51/289,920,567.89 = 142,102,610.45/x
  3. Step 3: Cross multiply
    193,471,697.51x = 289,920,567.89 × 142,102,610.45
  4. Step 4: Simplify right side
    193,471,697.51x = 41,198,469,518,155,328
  5. Step 5: Solve for x
    x = 41,198,469,518,155,328/193,471,697.51
  6. Step 6: Final answer
    x = 212,943,133.54

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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.