Finding the Fourth Proportional to 290,304,921.60, 434,953,497.60 and 272,165,068.80
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Solution
The fourth proportional to 290,304,921.60, 434,953,497.60 and 272,165,068.80 is: 407,775,203.90
Step by Step Solution
- Step 1: Write the proportion equation
290,304,921.60 : 434,953,497.60 = 272,165,068.80 : x - Step 2: Convert to fraction form
290,304,921.60/434,953,497.60 = 272,165,068.80/x - Step 3: Cross multiply
290,304,921.60x = 434,953,497.60 × 272,165,068.80 - Step 4: Simplify right side
290,304,921.60x = 118,379,148,599,104,640 - Step 5: Solve for x
x = 118,379,148,599,104,640/290,304,921.60 - Step 6: Final answer
x = 407,775,203.90
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.