Finding the Fourth Proportional to 6,458,702.40, 9,689,365.80 and 2,199,301.20
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Solution
The fourth proportional to 6,458,702.40, 9,689,365.80 and 2,199,301.20 is: 3,299,398.63
Step by Step Solution
- Step 1: Write the proportion equation
6,458,702.40 : 9,689,365.80 = 2,199,301.20 : x - Step 2: Convert to fraction form
6,458,702.40/9,689,365.80 = 2,199,301.20/x - Step 3: Cross multiply
6,458,702.40x = 9,689,365.80 × 2,199,301.20 - Step 4: Simplify right side
6,458,702.40x = 21,309,833,831,178.96 - Step 5: Solve for x
x = 21,309,833,831,178.96/6,458,702.40 - Step 6: Final answer
x = 3,299,398.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.