Finding the Fourth Proportional to 10,193,502.78, 15,290,238.51 and 6,988,913.82
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Solution
The fourth proportional to 10,193,502.78, 15,290,238.51 and 6,988,913.82 is: 10,483,359.99
Step by Step Solution
- Step 1: Write the proportion equation
10,193,502.78 : 15,290,238.51 = 6,988,913.82 : x - Step 2: Convert to fraction form
10,193,502.78/15,290,238.51 = 6,988,913.82/x - Step 3: Cross multiply
10,193,502.78x = 15,290,238.51 × 6,988,913.82 - Step 4: Simplify right side
10,193,502.78x = 106,862,159,233,635.22 - Step 5: Solve for x
x = 106,862,159,233,635.22/10,193,502.78 - Step 6: Final answer
x = 10,483,359.99
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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.