Finding the Fourth Proportional to 19,680,542.64, 29,519,764.20 and 5,303,379.60
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Solution
The fourth proportional to 19,680,542.64, 29,519,764.20 and 5,303,379.60 is: 7,954,786.52
Step by Step Solution
- Step 1: Write the proportion equation
19,680,542.64 : 29,519,764.20 = 5,303,379.60 : x - Step 2: Convert to fraction form
19,680,542.64/29,519,764.20 = 5,303,379.60/x - Step 3: Cross multiply
19,680,542.64x = 29,519,764.20 × 5,303,379.60 - Step 4: Simplify right side
19,680,542.64x = 156,554,515,255,090.31 - Step 5: Solve for x
x = 156,554,515,255,090.31/19,680,542.64 - Step 6: Final answer
x = 7,954,786.52
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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.