Finding the Fourth Proportional to 146,239,853.30, 201,813,436.53 and 79,260,949.85
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Solution
The fourth proportional to 146,239,853.30, 201,813,436.53 and 79,260,949.85 is: 109,381,432.70
Step by Step Solution
- Step 1: Write the proportion equation
146,239,853.30 : 201,813,436.53 = 79,260,949.85 : x - Step 2: Convert to fraction form
146,239,853.30/201,813,436.53 = 79,260,949.85/x - Step 3: Cross multiply
146,239,853.30x = 201,813,436.53 × 79,260,949.85 - Step 4: Simplify right side
146,239,853.30x = 15,995,924,671,860,486 - Step 5: Solve for x
x = 15,995,924,671,860,486/146,239,853.30 - Step 6: Final answer
x = 109,381,432.70
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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.