Finding the Fourth Proportional to 15,557,867.64, 21,470,201.21 and 8,588,529.02
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Solution
The fourth proportional to 15,557,867.64, 21,470,201.21 and 8,588,529.02 is: 11,852,359.88
Step by Step Solution
- Step 1: Write the proportion equation
15,557,867.64 : 21,470,201.21 = 8,588,529.02 : x - Step 2: Convert to fraction form
15,557,867.64/21,470,201.21 = 8,588,529.02/x - Step 3: Cross multiply
15,557,867.64x = 21,470,201.21 × 8,588,529.02 - Step 4: Simplify right side
15,557,867.64x = 184,397,446,232,470.94 - Step 5: Solve for x
x = 184,397,446,232,470.94/15,557,867.64 - Step 6: Final answer
x = 11,852,359.88
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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.