Home / 141,913,646.40-212,870,469.60-126,608,145.60

Finding the Fourth Proportional to 141,913,646.40, 212,870,469.60 and 126,608,145.60

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Solution

The fourth proportional to 141,913,646.40, 212,870,469.60 and 126,608,145.60 is: 189,912,218.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,913,646.40 : 212,870,469.60 = 126,608,145.60 : x
  2. Step 2: Convert to fraction form
    141,913,646.40/212,870,469.60 = 126,608,145.60/x
  3. Step 3: Cross multiply
    141,913,646.40x = 212,870,469.60 × 126,608,145.60
  4. Step 4: Simplify right side
    141,913,646.40x = 26,951,135,409,057,172
  5. Step 5: Solve for x
    x = 26,951,135,409,057,172/141,913,646.40
  6. Step 6: Final answer
    x = 189,912,218.40

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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.