Finding the Fourth Proportional to 319,185,448.16, 478,085,296.62 and 195,989,813.60
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Solution
The fourth proportional to 319,185,448.16, 478,085,296.62 and 195,989,813.60 is: 293,559,273.17
Step by Step Solution
- Step 1: Write the proportion equation
319,185,448.16 : 478,085,296.62 = 195,989,813.60 : x - Step 2: Convert to fraction form
319,185,448.16/478,085,296.62 = 195,989,813.60/x - Step 3: Cross multiply
319,185,448.16x = 478,085,296.62 × 195,989,813.60 - Step 4: Simplify right side
319,185,448.16x = 93,699,848,169,454,512 - Step 5: Solve for x
x = 93,699,848,169,454,512/319,185,448.16 - Step 6: Final answer
x = 293,559,273.17
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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.