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Finding the Third Proportional to 390,970,950 and 573,675,489

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Solution

The third proportional to 390,970,950 and 573,675,489 is: 841,759,641.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,970,950 : 573,675,489 = 573,675,489 : x
  2. Step 2: Convert to fraction form
    390,970,950/573,675,489 = 573,675,489/x
  3. Step 3: Cross multiply
    390,970,950x = 573,675,489 × 573,675,489
  4. Step 4: Simplify right side
    390,970,950x = 329,103,566,679,389,120
  5. Step 5: Solve for x
    x = 329,103,566,679,389,120/390,970,950
  6. Step 6: Final answer
    x = 841,759,641.42

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.