Home / 193,138,679.60-289,708,019.40-102,439,415.60

Finding the Fourth Proportional to 193,138,679.60, 289,708,019.40 and 102,439,415.60

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Solution

The fourth proportional to 193,138,679.60, 289,708,019.40 and 102,439,415.60 is: 153,659,123.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,138,679.60 : 289,708,019.40 = 102,439,415.60 : x
  2. Step 2: Convert to fraction form
    193,138,679.60/289,708,019.40 = 102,439,415.60/x
  3. Step 3: Cross multiply
    193,138,679.60x = 289,708,019.40 × 102,439,415.60
  4. Step 4: Simplify right side
    193,138,679.60x = 29,677,520,201,969,460
  5. Step 5: Solve for x
    x = 29,677,520,201,969,460/193,138,679.60
  6. Step 6: Final answer
    x = 153,659,123.40

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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.