Finding the Fourth Proportional to 12,985,959.64, 19,478,741.82 and 4,466,369.92
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Solution
The fourth proportional to 12,985,959.64, 19,478,741.82 and 4,466,369.92 is: 6,699,486.90
Step by Step Solution
- Step 1: Write the proportion equation
12,985,959.64 : 19,478,741.82 = 4,466,369.92 : x - Step 2: Convert to fraction form
12,985,959.64/19,478,741.82 = 4,466,369.92/x - Step 3: Cross multiply
12,985,959.64x = 19,478,741.82 × 4,466,369.92 - Step 4: Simplify right side
12,985,959.64x = 86,999,266,544,294.05 - Step 5: Solve for x
x = 86,999,266,544,294.05/12,985,959.64 - Step 6: Final answer
x = 6,699,486.90
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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.