Finding the Fourth Proportional to 13,129,382.40, 19,714,348.80 and 7,157,414.40
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Solution
The fourth proportional to 13,129,382.40, 19,714,348.80 and 7,157,414.40 is: 10,747,174.52
Step by Step Solution
- Step 1: Write the proportion equation
13,129,382.40 : 19,714,348.80 = 7,157,414.40 : x - Step 2: Convert to fraction form
13,129,382.40/19,714,348.80 = 7,157,414.40/x - Step 3: Cross multiply
13,129,382.40x = 19,714,348.80 × 7,157,414.40 - Step 4: Simplify right side
13,129,382.40x = 141,103,763,987,742.72 - Step 5: Solve for x
x = 141,103,763,987,742.72/13,129,382.40 - Step 6: Final answer
x = 10,747,174.52
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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.