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Finding the Third Proportional to 90,842,391 and 199,270,620

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Solution

The third proportional to 90,842,391 and 199,270,620 is: 437,117,292.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,842,391 : 199,270,620 = 199,270,620 : x
  2. Step 2: Convert to fraction form
    90,842,391/199,270,620 = 199,270,620/x
  3. Step 3: Cross multiply
    90,842,391x = 199,270,620 × 199,270,620
  4. Step 4: Simplify right side
    90,842,391x = 39,708,779,995,184,400
  5. Step 5: Solve for x
    x = 39,708,779,995,184,400/90,842,391
  6. Step 6: Final answer
    x = 437,117,292.47

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.