Finding the Fourth Proportional to 19,991,430.48, 29,987,146.06 and 4,845,361.98
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Solution
The fourth proportional to 19,991,430.48, 29,987,146.06 and 4,845,361.98 is: 7,268,043.05
Step by Step Solution
- Step 1: Write the proportion equation
19,991,430.48 : 29,987,146.06 = 4,845,361.98 : x - Step 2: Convert to fraction form
19,991,430.48/29,987,146.06 = 4,845,361.98/x - Step 3: Cross multiply
19,991,430.48x = 29,987,146.06 × 4,845,361.98 - Step 4: Simplify right side
19,991,430.48x = 145,298,577,407,830.81 - Step 5: Solve for x
x = 145,298,577,407,830.81/19,991,430.48 - Step 6: Final answer
x = 7,268,043.05
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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.