Finding the Fourth Proportional to 9,206,985,670.92, 12,705,616,328.20 and 5,137,844,711.99
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Solution
The fourth proportional to 9,206,985,670.92, 12,705,616,328.20 and 5,137,844,711.99 is: 7,090,212,366.74
Step by Step Solution
- Step 1: Write the proportion equation
9,206,985,670.92 : 12,705,616,328.20 = 5,137,844,711.99 : x - Step 2: Convert to fraction form
9,206,985,670.92/12,705,616,328.20 = 5,137,844,711.99/x - Step 3: Cross multiply
9,206,985,670.92x = 12,705,616,328.20 × 5,137,844,711.99 - Step 4: Simplify right side
9,206,985,670.92x = 65,279,483,664,342,360,064 - Step 5: Solve for x
x = 65,279,483,664,342,360,064/9,206,985,670.92 - Step 6: Final answer
x = 7,090,212,366.74
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1.5x scale
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.