Finding the Fourth Proportional to 15,310,372.41, 21,128,066.46 and 8,341,133.31
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Solution
The fourth proportional to 15,310,372.41, 21,128,066.46 and 8,341,133.31 is: 11,510,629.15
Step by Step Solution
- Step 1: Write the proportion equation
15,310,372.41 : 21,128,066.46 = 8,341,133.31 : x - Step 2: Convert to fraction form
15,310,372.41/21,128,066.46 = 8,341,133.31/x - Step 3: Cross multiply
15,310,372.41x = 21,128,066.46 × 8,341,133.31 - Step 4: Simplify right side
15,310,372.41x = 176,232,018,925,399.78 - Step 5: Solve for x
x = 176,232,018,925,399.78/15,310,372.41 - Step 6: Final answer
x = 11,510,629.15
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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.