Finding the Fourth Proportional to 290,567,329.68, 435,852,569.16 and 86,097,176.40
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Solution
The fourth proportional to 290,567,329.68, 435,852,569.16 and 86,097,176.40 is: 129,146,231.18
Step by Step Solution
- Step 1: Write the proportion equation
290,567,329.68 : 435,852,569.16 = 86,097,176.40 : x - Step 2: Convert to fraction form
290,567,329.68/435,852,569.16 = 86,097,176.40/x - Step 3: Cross multiply
290,567,329.68x = 435,852,569.16 × 86,097,176.40 - Step 4: Simplify right side
290,567,329.68x = 37,525,675,531,361,728 - Step 5: Solve for x
x = 37,525,675,531,361,728/290,567,329.68 - Step 6: Final answer
x = 129,146,231.18
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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.