Finding the Fourth Proportional to 279,167,542.42, 385,254,059.49 and 153,731,402.92
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Solution
The fourth proportional to 279,167,542.42, 385,254,059.49 and 153,731,402.92 is: 212,150,905.99
Step by Step Solution
- Step 1: Write the proportion equation
279,167,542.42 : 385,254,059.49 = 153,731,402.92 : x - Step 2: Convert to fraction form
279,167,542.42/385,254,059.49 = 153,731,402.92/x - Step 3: Cross multiply
279,167,542.42x = 385,254,059.49 × 153,731,402.92 - Step 4: Simplify right side
279,167,542.42x = 59,225,647,046,022,840 - Step 5: Solve for x
x = 59,225,647,046,022,840/279,167,542.42 - Step 6: Final answer
x = 212,150,905.99
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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.