Finding the Fourth Proportional to 68,548,238.68, 94,596,569.37 and 39,180,201.81
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Solution
The fourth proportional to 68,548,238.68, 94,596,569.37 and 39,180,201.81 is: 54,068,678.49
Step by Step Solution
- Step 1: Write the proportion equation
68,548,238.68 : 94,596,569.37 = 39,180,201.81 : x - Step 2: Convert to fraction form
68,548,238.68/94,596,569.37 = 39,180,201.81/x - Step 3: Cross multiply
68,548,238.68x = 94,596,569.37 × 39,180,201.81 - Step 4: Simplify right side
68,548,238.68x = 3,706,312,678,242,453 - Step 5: Solve for x
x = 3,706,312,678,242,453/68,548,238.68 - Step 6: Final answer
x = 54,068,678.49
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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.