Finding the Fourth Proportional to 279,279,134.68, 385,405,201.30 and 161,872,564.46
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Solution
The fourth proportional to 279,279,134.68, 385,405,201.30 and 161,872,564.46 is: 223,384,136.31
Step by Step Solution
- Step 1: Write the proportion equation
279,279,134.68 : 385,405,201.30 = 161,872,564.46 : x - Step 2: Convert to fraction form
279,279,134.68/385,405,201.30 = 161,872,564.46/x - Step 3: Cross multiply
279,279,134.68x = 385,405,201.30 × 161,872,564.46 - Step 4: Simplify right side
279,279,134.68x = 62,386,528,290,653,528 - Step 5: Solve for x
x = 62,386,528,290,653,528/279,279,134.68 - Step 6: Final answer
x = 223,384,136.31
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.