Finding the Fourth Proportional to 279,230,444.24, 385,333,311.84 and 153,794,321.12
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Solution
The fourth proportional to 279,230,444.24, 385,333,311.84 and 153,794,321.12 is: 212,233,573.82
Step by Step Solution
- Step 1: Write the proportion equation
279,230,444.24 : 385,333,311.84 = 153,794,321.12 : x - Step 2: Convert to fraction form
279,230,444.24/385,333,311.84 = 153,794,321.12/x - Step 3: Cross multiply
279,230,444.24x = 385,333,311.84 × 153,794,321.12 - Step 4: Simplify right side
279,230,444.24x = 59,262,075,099,354,056 - Step 5: Solve for x
x = 59,262,075,099,354,056/279,230,444.24 - Step 6: Final answer
x = 212,233,573.82
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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.