Finding the Fourth Proportional to 7,121,512.39, 9,817,926.28 and 4,506,715.75
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Solution
The fourth proportional to 7,121,512.39, 9,817,926.28 and 4,506,715.75 is: 6,213,090.78
Step by Step Solution
- Step 1: Write the proportion equation
7,121,512.39 : 9,817,926.28 = 4,506,715.75 : x - Step 2: Convert to fraction form
7,121,512.39/9,817,926.28 = 4,506,715.75/x - Step 3: Cross multiply
7,121,512.39x = 9,817,926.28 × 4,506,715.75 - Step 4: Simplify right side
7,121,512.39x = 44,246,602,998,414.91 - Step 5: Solve for x
x = 44,246,602,998,414.91/7,121,512.39 - Step 6: Final answer
x = 6,213,090.78
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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.