Finding the Fourth Proportional to 386,267,675.08, 533,042,001.30 and 212,427,419.08
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Solution
The fourth proportional to 386,267,675.08, 533,042,001.30 and 212,427,419.08 is: 293,145,774.04
Step by Step Solution
- Step 1: Write the proportion equation
386,267,675.08 : 533,042,001.30 = 212,427,419.08 : x - Step 2: Convert to fraction form
386,267,675.08/533,042,001.30 = 212,427,419.08/x - Step 3: Cross multiply
386,267,675.08x = 533,042,001.30 × 212,427,419.08 - Step 4: Simplify right side
386,267,675.08x = 113,232,736,597,397,008 - Step 5: Solve for x
x = 113,232,736,597,397,008/386,267,675.08 - Step 6: Final answer
x = 293,145,774.04
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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.