Finding the Fourth Proportional to 354,585,285.05, 489,458,268.68 and 213,463,064.84
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Solution
The fourth proportional to 354,585,285.05, 489,458,268.68 and 213,463,064.84 is: 294,657,636.81
Step by Step Solution
- Step 1: Write the proportion equation
354,585,285.05 : 489,458,268.68 = 213,463,064.84 : x - Step 2: Convert to fraction form
354,585,285.05/489,458,268.68 = 213,463,064.84/x - Step 3: Cross multiply
354,585,285.05x = 489,458,268.68 × 213,463,064.84 - Step 4: Simplify right side
354,585,285.05x = 104,481,262,140,198,384 - Step 5: Solve for x
x = 104,481,262,140,198,384/354,585,285.05 - Step 6: Final answer
x = 294,657,636.81
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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.