Finding the Fourth Proportional to 30,987,160.36, 46,486,415.60 and 12,781,424.08
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Solution
The fourth proportional to 30,987,160.36, 46,486,415.60 and 12,781,424.08 is: 19,174,476.94
Step by Step Solution
- Step 1: Write the proportion equation
30,987,160.36 : 46,486,415.60 = 12,781,424.08 : x - Step 2: Convert to fraction form
30,987,160.36/46,486,415.60 = 12,781,424.08/x - Step 3: Cross multiply
30,987,160.36x = 46,486,415.60 × 12,781,424.08 - Step 4: Simplify right side
30,987,160.36x = 594,162,591,742,727.62 - Step 5: Solve for x
x = 594,162,591,742,727.62/30,987,160.36 - Step 6: Final answer
x = 19,174,476.94
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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.