Finding the Fourth Proportional to 386,832,049.68, 533,841,330.28 and 210,626,878.80
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Solution
The fourth proportional to 386,832,049.68, 533,841,330.28 and 210,626,878.80 is: 290,672,226.52
Step by Step Solution
- Step 1: Write the proportion equation
386,832,049.68 : 533,841,330.28 = 210,626,878.80 : x - Step 2: Convert to fraction form
386,832,049.68/533,841,330.28 = 210,626,878.80/x - Step 3: Cross multiply
386,832,049.68x = 533,841,330.28 × 210,626,878.80 - Step 4: Simplify right side
386,832,049.68x = 112,441,333,171,316,336 - Step 5: Solve for x
x = 112,441,333,171,316,336/386,832,049.68 - Step 6: Final answer
x = 290,672,226.52
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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.