Finding the Fourth Proportional to 7,817,402.76, 10,791,028.62 and 7,601,677.08
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Solution
The fourth proportional to 7,817,402.76, 10,791,028.62 and 7,601,677.08 is: 10,493,244.04
Step by Step Solution
- Step 1: Write the proportion equation
7,817,402.76 : 10,791,028.62 = 7,601,677.08 : x - Step 2: Convert to fraction form
7,817,402.76/10,791,028.62 = 7,601,677.08/x - Step 3: Cross multiply
7,817,402.76x = 10,791,028.62 × 7,601,677.08 - Step 4: Simplify right side
7,817,402.76x = 82,029,914,930,278.03 - Step 5: Solve for x
x = 82,029,914,930,278.03/7,817,402.76 - Step 6: Final answer
x = 10,493,244.04
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Double scale
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Similar ratio
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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.