Finding the Fourth Proportional to 19,509,081.40, 29,232,129.30 and 12,307,727.80
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Solution
The fourth proportional to 19,509,081.40, 29,232,129.30 and 12,307,727.80 is: 18,441,723.78
Step by Step Solution
- Step 1: Write the proportion equation
19,509,081.40 : 29,232,129.30 = 12,307,727.80 : x - Step 2: Convert to fraction form
19,509,081.40/29,232,129.30 = 12,307,727.80/x - Step 3: Cross multiply
19,509,081.40x = 29,232,129.30 × 12,307,727.80 - Step 4: Simplify right side
19,509,081.40x = 359,781,090,438,804.56 - Step 5: Solve for x
x = 359,781,090,438,804.56/19,509,081.40 - Step 6: Final answer
x = 18,441,723.78
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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.