Finding the Fourth Proportional to 23,017,539.90, 31,761,943.61 and 12,703,598.70
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Solution
The fourth proportional to 23,017,539.90, 31,761,943.61 and 12,703,598.70 is: 17,529,718.09
Step by Step Solution
- Step 1: Write the proportion equation
23,017,539.90 : 31,761,943.61 = 12,703,598.70 : x - Step 2: Convert to fraction form
23,017,539.90/31,761,943.61 = 12,703,598.70/x - Step 3: Cross multiply
23,017,539.90x = 31,761,943.61 × 12,703,598.70 - Step 4: Simplify right side
23,017,539.90x = 403,490,985,489,951.31 - Step 5: Solve for x
x = 403,490,985,489,951.31/23,017,539.90 - Step 6: Final answer
x = 17,529,718.09
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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.