Finding the Fourth Proportional to 14,328,906.36, 19,768,697.80 and 8,130,362.72
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Solution
The fourth proportional to 14,328,906.36, 19,768,697.80 and 8,130,362.72 is: 11,216,954.01
Step by Step Solution
- Step 1: Write the proportion equation
14,328,906.36 : 19,768,697.80 = 8,130,362.72 : x - Step 2: Convert to fraction form
14,328,906.36/19,768,697.80 = 8,130,362.72/x - Step 3: Cross multiply
14,328,906.36x = 19,768,697.80 × 8,130,362.72 - Step 4: Simplify right side
14,328,906.36x = 160,726,683,616,066.03 - Step 5: Solve for x
x = 160,726,683,616,066.03/14,328,906.36 - Step 6: Final answer
x = 11,216,954.01
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.