Finding the Fourth Proportional to 4,720,702,916.70, 6,515,422,772.31 and 2,815,586,493.66
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Solution
The fourth proportional to 4,720,702,916.70, 6,515,422,772.31 and 2,815,586,493.66 is: 3,886,017,968.49
Step by Step Solution
- Step 1: Write the proportion equation
4,720,702,916.70 : 6,515,422,772.31 = 2,815,586,493.66 : x - Step 2: Convert to fraction form
4,720,702,916.70/6,515,422,772.31 = 2,815,586,493.66/x - Step 3: Cross multiply
4,720,702,916.70x = 6,515,422,772.31 × 2,815,586,493.66 - Step 4: Simplify right side
4,720,702,916.70x = 18,344,736,358,200,829,952 - Step 5: Solve for x
x = 18,344,736,358,200,829,952/4,720,702,916.70 - Step 6: Final answer
x = 3,886,017,968.49
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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.