Finding the Fourth Proportional to 136,630,489.94, 188,632,083.38 and 84,489,435.62
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Solution
The fourth proportional to 136,630,489.94, 188,632,083.38 and 84,489,435.62 is: 116,646,132.73
Step by Step Solution
- Step 1: Write the proportion equation
136,630,489.94 : 188,632,083.38 = 84,489,435.62 : x - Step 2: Convert to fraction form
136,630,489.94/188,632,083.38 = 84,489,435.62/x - Step 3: Cross multiply
136,630,489.94x = 188,632,083.38 × 84,489,435.62 - Step 4: Simplify right side
136,630,489.94x = 15,937,418,264,600,982 - Step 5: Solve for x
x = 15,937,418,264,600,982/136,630,489.94 - Step 6: Final answer
x = 116,646,132.73
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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.