Home / 199,191,705.61-312,434,020.76

Finding the Third Proportional to 199,191,705.61 and 312,434,020.76

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Solution

The third proportional to 199,191,705.61 and 312,434,020.76 is: 490,055,632.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,191,705.61 : 312,434,020.76 = 312,434,020.76 : x
  2. Step 2: Convert to fraction form
    199,191,705.61/312,434,020.76 = 312,434,020.76/x
  3. Step 3: Cross multiply
    199,191,705.61x = 312,434,020.76 × 312,434,020.76
  4. Step 4: Simplify right side
    199,191,705.61x = 97,615,017,326,885,392
  5. Step 5: Solve for x
    x = 97,615,017,326,885,392/199,191,705.61
  6. Step 6: Final answer
    x = 490,055,632.73

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.