Finding the Fourth Proportional to 78,805,109.80, 118,207,664.70 and 48,572,021.80
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Solution
The fourth proportional to 78,805,109.80, 118,207,664.70 and 48,572,021.80 is: 72,858,032.70
Step by Step Solution
- Step 1: Write the proportion equation
78,805,109.80 : 118,207,664.70 = 48,572,021.80 : x - Step 2: Convert to fraction form
78,805,109.80/118,207,664.70 = 48,572,021.80/x - Step 3: Cross multiply
78,805,109.80x = 118,207,664.70 × 48,572,021.80 - Step 4: Simplify right side
78,805,109.80x = 5,741,585,266,735,490 - Step 5: Solve for x
x = 5,741,585,266,735,490/78,805,109.80 - Step 6: Final answer
x = 72,858,032.70
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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.