Home / 193,238,415.10-289,633,673.85-78,166,056.70

Finding the Fourth Proportional to 193,238,415.10, 289,633,673.85 and 78,166,056.70

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Solution

The fourth proportional to 193,238,415.10, 289,633,673.85 and 78,166,056.70 is: 117,158,496.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,238,415.10 : 289,633,673.85 = 78,166,056.70 : x
  2. Step 2: Convert to fraction form
    193,238,415.10/289,633,673.85 = 78,166,056.70/x
  3. Step 3: Cross multiply
    193,238,415.10x = 289,633,673.85 × 78,166,056.70
  4. Step 4: Simplify right side
    193,238,415.10x = 22,639,522,172,388,412
  5. Step 5: Solve for x
    x = 22,639,522,172,388,412/193,238,415.10
  6. Step 6: Final answer
    x = 117,158,496.46

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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.