Finding the Fourth Proportional to 15,926,705.57, 21,980,723.28 and 9,052,220.99
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Solution
The fourth proportional to 15,926,705.57, 21,980,723.28 and 9,052,220.99 is: 12,493,127.58
Step by Step Solution
- Step 1: Write the proportion equation
15,926,705.57 : 21,980,723.28 = 9,052,220.99 : x - Step 2: Convert to fraction form
15,926,705.57/21,980,723.28 = 9,052,220.99/x - Step 3: Cross multiply
15,926,705.57x = 21,980,723.28 × 9,052,220.99 - Step 4: Simplify right side
15,926,705.57x = 198,974,364,650,597.66 - Step 5: Solve for x
x = 198,974,364,650,597.66/15,926,705.57 - Step 6: Final answer
x = 12,493,127.58
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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.