Finding the Fourth Proportional to 1,244,703,073.15, 1,717,788,157.46 and 708,877,394.52
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Solution
The fourth proportional to 1,244,703,073.15, 1,717,788,157.46 and 708,877,394.52 is: 978,306,569.39
Step by Step Solution
- Step 1: Write the proportion equation
1,244,703,073.15 : 1,717,788,157.46 = 708,877,394.52 : x - Step 2: Convert to fraction form
1,244,703,073.15/1,717,788,157.46 = 708,877,394.52/x - Step 3: Cross multiply
1,244,703,073.15x = 1,717,788,157.46 × 708,877,394.52 - Step 4: Simplify right side
1,244,703,073.15x = 1,217,701,193,397,556,224 - Step 5: Solve for x
x = 1,217,701,193,397,556,224/1,244,703,073.15 - Step 6: Final answer
x = 978,306,569.39
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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.