Finding the Fourth Proportional to 354,585,290.29, 489,458,275.93 and 213,463,070.09
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Solution
The fourth proportional to 354,585,290.29, 489,458,275.93 and 213,463,070.09 is: 294,657,644.07
Step by Step Solution
- Step 1: Write the proportion equation
354,585,290.29 : 489,458,275.93 = 213,463,070.09 : x - Step 2: Convert to fraction form
354,585,290.29/489,458,275.93 = 213,463,070.09/x - Step 3: Cross multiply
354,585,290.29x = 489,458,275.93 × 213,463,070.09 - Step 4: Simplify right side
354,585,290.29x = 104,481,266,259,908,832 - Step 5: Solve for x
x = 104,481,266,259,908,832/354,585,290.29 - Step 6: Final answer
x = 294,657,644.07
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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.