Home / 189,400,538.25-406,996,953.75

Finding the Third Proportional to 189,400,538.25 and 406,996,953.75

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Solution

The third proportional to 189,400,538.25 and 406,996,953.75 is: 874,583,155.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,400,538.25 : 406,996,953.75 = 406,996,953.75 : x
  2. Step 2: Convert to fraction form
    189,400,538.25/406,996,953.75 = 406,996,953.75/x
  3. Step 3: Cross multiply
    189,400,538.25x = 406,996,953.75 × 406,996,953.75
  4. Step 4: Simplify right side
    189,400,538.25x = 165,646,520,361,779,648
  5. Step 5: Solve for x
    x = 165,646,520,361,779,648/189,400,538.25
  6. Step 6: Final answer
    x = 874,583,155.32

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.