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Finding the Fourth Proportional to 654,328,624.74, 902,976,430.96 and 356,969,965.78

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Solution

The fourth proportional to 654,328,624.74, 902,976,430.96 and 356,969,965.78 is: 492,620,150.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,328,624.74 : 902,976,430.96 = 356,969,965.78 : x
  2. Step 2: Convert to fraction form
    654,328,624.74/902,976,430.96 = 356,969,965.78/x
  3. Step 3: Cross multiply
    654,328,624.74x = 902,976,430.96 × 356,969,965.78
  4. Step 4: Simplify right side
    654,328,624.74x = 322,335,465,659,937,728
  5. Step 5: Solve for x
    x = 322,335,465,659,937,728/654,328,624.74
  6. Step 6: Final answer
    x = 492,620,150.60

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.