Finding the Fourth Proportional to 19,430,043.12, 26,802,219 and 12,554,525.18
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Solution
The fourth proportional to 19,430,043.12, 26,802,219 and 12,554,525.18 is: 17,317,981.81
Step by Step Solution
- Step 1: Write the proportion equation
19,430,043.12 : 26,802,219 = 12,554,525.18 : x - Step 2: Convert to fraction form
19,430,043.12/26,802,219 = 12,554,525.18/x - Step 3: Cross multiply
19,430,043.12x = 26,802,219 × 12,554,525.18 - Step 4: Simplify right side
19,430,043.12x = 336,489,133,315,374.44 - Step 5: Solve for x
x = 336,489,133,315,374.44/19,430,043.12 - Step 6: Final answer
x = 17,317,981.81
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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.