Finding the Fourth Proportional to 279,938,316.90, 419,907,475.35 and 164,863,625.70
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Solution
The fourth proportional to 279,938,316.90, 419,907,475.35 and 164,863,625.70 is: 247,295,438.55
Step by Step Solution
- Step 1: Write the proportion equation
279,938,316.90 : 419,907,475.35 = 164,863,625.70 : x - Step 2: Convert to fraction form
279,938,316.90/419,907,475.35 = 164,863,625.70/x - Step 3: Cross multiply
279,938,316.90x = 419,907,475.35 × 164,863,625.70 - Step 4: Simplify right side
279,938,316.90x = 69,227,468,844,734,376 - Step 5: Solve for x
x = 69,227,468,844,734,376/279,938,316.90 - Step 6: Final answer
x = 247,295,438.55
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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.