Finding the Fourth Proportional to 211,347,103.84, 316,860,770.40 and 138,582,203.20
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Solution
The fourth proportional to 211,347,103.84, 316,860,770.40 and 138,582,203.20 is: 207,768,466.53
Step by Step Solution
- Step 1: Write the proportion equation
211,347,103.84 : 316,860,770.40 = 138,582,203.20 : x - Step 2: Convert to fraction form
211,347,103.84/316,860,770.40 = 138,582,203.20/x - Step 3: Cross multiply
211,347,103.84x = 316,860,770.40 × 138,582,203.20 - Step 4: Simplify right side
211,347,103.84x = 43,911,263,669,681,336 - Step 5: Solve for x
x = 43,911,263,669,681,336/211,347,103.84 - Step 6: Final answer
x = 207,768,466.53
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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.