Finding the Fourth Proportional to 9,642,646.17, 13,307,449.63 and 6,373,791.94
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Solution
The fourth proportional to 9,642,646.17, 13,307,449.63 and 6,373,791.94 is: 8,796,228.10
Step by Step Solution
- Step 1: Write the proportion equation
9,642,646.17 : 13,307,449.63 = 6,373,791.94 : x - Step 2: Convert to fraction form
9,642,646.17/13,307,449.63 = 6,373,791.94/x - Step 3: Cross multiply
9,642,646.17x = 13,307,449.63 × 6,373,791.94 - Step 4: Simplify right side
9,642,646.17x = 84,818,915,193,650 - Step 5: Solve for x
x = 84,818,915,193,650/9,642,646.17 - Step 6: Final answer
x = 8,796,228.10
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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.