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Finding the Fourth Proportional to 486,954,617.96, 729,974,690.44 and 163,612,363.88

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Solution

The fourth proportional to 486,954,617.96, 729,974,690.44 and 163,612,363.88 is: 245,264,918.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,954,617.96 : 729,974,690.44 = 163,612,363.88 : x
  2. Step 2: Convert to fraction form
    486,954,617.96/729,974,690.44 = 163,612,363.88/x
  3. Step 3: Cross multiply
    486,954,617.96x = 729,974,690.44 × 163,612,363.88
  4. Step 4: Simplify right side
    486,954,617.96x = 119,432,884,675,459,648
  5. Step 5: Solve for x
    x = 119,432,884,675,459,648/486,954,617.96
  6. Step 6: Final answer
    x = 245,264,918.48

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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.