Finding the Fourth Proportional to 990,498,950.44, 1,485,781,474.14 and 445,242,097.96
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Solution
The fourth proportional to 990,498,950.44, 1,485,781,474.14 and 445,242,097.96 is: 667,878,002.66
Step by Step Solution
- Step 1: Write the proportion equation
990,498,950.44 : 1,485,781,474.14 = 445,242,097.96 : x - Step 2: Convert to fraction form
990,498,950.44/1,485,781,474.14 = 445,242,097.96/x - Step 3: Cross multiply
990,498,950.44x = 1,485,781,474.14 × 445,242,097.96 - Step 4: Simplify right side
990,498,950.44x = 661,532,460,656,195,072 - Step 5: Solve for x
x = 661,532,460,656,195,072/990,498,950.44 - Step 6: Final answer
x = 667,878,002.66
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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.