Finding the Fourth Proportional to 213,192,030.05, 319,788,045.08 and 209,790,807.65
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Solution
The fourth proportional to 213,192,030.05, 319,788,045.08 and 209,790,807.65 is: 314,686,211.48
Step by Step Solution
- Step 1: Write the proportion equation
213,192,030.05 : 319,788,045.08 = 209,790,807.65 : x - Step 2: Convert to fraction form
213,192,030.05/319,788,045.08 = 209,790,807.65/x - Step 3: Cross multiply
213,192,030.05x = 319,788,045.08 × 209,790,807.65 - Step 4: Simplify right side
213,192,030.05x = 67,088,592,253,098,856 - Step 5: Solve for x
x = 67,088,592,253,098,856/213,192,030.05 - Step 6: Final answer
x = 314,686,211.48
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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.