Finding the Fourth Proportional to 15,756,376.08, 21,743,965.20 and 8,880,858.12
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Solution
The fourth proportional to 15,756,376.08, 21,743,965.20 and 8,880,858.12 is: 12,255,677.89
Step by Step Solution
- Step 1: Write the proportion equation
15,756,376.08 : 21,743,965.20 = 8,880,858.12 : x - Step 2: Convert to fraction form
15,756,376.08/21,743,965.20 = 8,880,858.12/x - Step 3: Cross multiply
15,756,376.08x = 21,743,965.20 × 8,880,858.12 - Step 4: Simplify right side
15,756,376.08x = 193,105,069,907,417.41 - Step 5: Solve for x
x = 193,105,069,907,417.41/15,756,376.08 - Step 6: Final answer
x = 12,255,677.89
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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.