Finding the Fourth Proportional to 193,451,517.08, 266,963,110.30 and 105,345,488.32
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Solution
The fourth proportional to 193,451,517.08, 266,963,110.30 and 105,345,488.32 is: 145,376,782.99
Step by Step Solution
- Step 1: Write the proportion equation
193,451,517.08 : 266,963,110.30 = 105,345,488.32 : x - Step 2: Convert to fraction form
193,451,517.08/266,963,110.30 = 105,345,488.32/x - Step 3: Cross multiply
193,451,517.08x = 266,963,110.30 × 105,345,488.32 - Step 4: Simplify right side
193,451,517.08x = 28,123,359,217,979,520 - Step 5: Solve for x
x = 28,123,359,217,979,520/193,451,517.08 - Step 6: Final answer
x = 145,376,782.99
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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.