Finding the Fourth Proportional to 13,744,602.18, 18,965,275.20 and 7,943,924.07
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Solution
The fourth proportional to 13,744,602.18, 18,965,275.20 and 7,943,924.07 is: 10,961,299.87
Step by Step Solution
- Step 1: Write the proportion equation
13,744,602.18 : 18,965,275.20 = 7,943,924.07 : x - Step 2: Convert to fraction form
13,744,602.18/18,965,275.20 = 7,943,924.07/x - Step 3: Cross multiply
13,744,602.18x = 18,965,275.20 × 7,943,924.07 - Step 4: Simplify right side
13,744,602.18x = 150,658,706,155,454.06 - Step 5: Solve for x
x = 150,658,706,155,454.06/13,744,602.18 - Step 6: Final answer
x = 10,961,299.87
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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.