Finding the Fourth Proportional to 15,490,650.08, 21,377,686.92 and 8,615,629.28
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Solution
The fourth proportional to 15,490,650.08, 21,377,686.92 and 8,615,629.28 is: 11,889,896.45
Step by Step Solution
- Step 1: Write the proportion equation
15,490,650.08 : 21,377,686.92 = 8,615,629.28 : x - Step 2: Convert to fraction form
15,490,650.08/21,377,686.92 = 8,615,629.28/x - Step 3: Cross multiply
15,490,650.08x = 21,377,686.92 × 8,615,629.28 - Step 4: Simplify right side
15,490,650.08x = 184,182,225,366,625.03 - Step 5: Solve for x
x = 184,182,225,366,625.03/15,490,650.08 - Step 6: Final answer
x = 11,889,896.45
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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.