Finding the Fourth Proportional to 1,213,474,358.48, 1,674,118,124.82 and 704,750,468.42
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Solution
The fourth proportional to 1,213,474,358.48, 1,674,118,124.82 and 704,750,468.42 is: 972,278,915.01
Step by Step Solution
- Step 1: Write the proportion equation
1,213,474,358.48 : 1,674,118,124.82 = 704,750,468.42 : x - Step 2: Convert to fraction form
1,213,474,358.48/1,674,118,124.82 = 704,750,468.42/x - Step 3: Cross multiply
1,213,474,358.48x = 1,674,118,124.82 × 704,750,468.42 - Step 4: Simplify right side
1,213,474,358.48x = 1,179,835,532,657,306,880 - Step 5: Solve for x
x = 1,179,835,532,657,306,880/1,213,474,358.48 - Step 6: Final answer
x = 972,278,915.01
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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.