Finding the Fourth Proportional to 165,192,468.30, 247,788,702.45 and 138,318,612.30
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Solution
The fourth proportional to 165,192,468.30, 247,788,702.45 and 138,318,612.30 is: 207,477,918.45
Step by Step Solution
- Step 1: Write the proportion equation
165,192,468.30 : 247,788,702.45 = 138,318,612.30 : x - Step 2: Convert to fraction form
165,192,468.30/247,788,702.45 = 138,318,612.30/x - Step 3: Cross multiply
165,192,468.30x = 247,788,702.45 × 138,318,612.30 - Step 4: Simplify right side
165,192,468.30x = 34,273,789,466,501,612 - Step 5: Solve for x
x = 34,273,789,466,501,612/165,192,468.30 - Step 6: Final answer
x = 207,477,918.45
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1.5x scale
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.