Finding the Fourth Proportional to 117,636,228.10, 176,292,915.18 and 74,428,082.20
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Solution
The fourth proportional to 117,636,228.10, 176,292,915.18 and 74,428,082.20 is: 111,539,988.95
Step by Step Solution
- Step 1: Write the proportion equation
117,636,228.10 : 176,292,915.18 = 74,428,082.20 : x - Step 2: Convert to fraction form
117,636,228.10/176,292,915.18 = 74,428,082.20/x - Step 3: Cross multiply
117,636,228.10x = 176,292,915.18 × 74,428,082.20 - Step 4: Simplify right side
117,636,228.10x = 13,121,143,582,294,668 - Step 5: Solve for x
x = 13,121,143,582,294,668/117,636,228.10 - Step 6: Final answer
x = 111,539,988.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.