Finding the Fourth Proportional to 203,988,293.22, 281,549,280.11 and 129,634,355.57
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Solution
The fourth proportional to 203,988,293.22, 281,549,280.11 and 129,634,355.57 is: 178,924,284.87
Step by Step Solution
- Step 1: Write the proportion equation
203,988,293.22 : 281,549,280.11 = 129,634,355.57 : x - Step 2: Convert to fraction form
203,988,293.22/281,549,280.11 = 129,634,355.57/x - Step 3: Cross multiply
203,988,293.22x = 281,549,280.11 × 129,634,355.57 - Step 4: Simplify right side
203,988,293.22x = 36,498,459,486,201,352 - Step 5: Solve for x
x = 36,498,459,486,201,352/203,988,293.22 - Step 6: Final answer
x = 178,924,284.87
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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.