Finding the Fourth Proportional to 19,960,430.86, 29,927,773.42 and 7,831,120.15
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Solution
The fourth proportional to 19,960,430.86, 29,927,773.42 and 7,831,120.15 is: 11,741,629.78
Step by Step Solution
- Step 1: Write the proportion equation
19,960,430.86 : 29,927,773.42 = 7,831,120.15 : x - Step 2: Convert to fraction form
19,960,430.86/29,927,773.42 = 7,831,120.15/x - Step 3: Cross multiply
19,960,430.86x = 29,927,773.42 × 7,831,120.15 - Step 4: Simplify right side
19,960,430.86x = 234,367,989,304,779.75 - Step 5: Solve for x
x = 234,367,989,304,779.75/19,960,430.86 - Step 6: Final answer
x = 11,741,629.78
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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.