Finding the Fourth Proportional to 15,237,068.72, 21,027,761.36 and 8,361,796.84
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Solution
The fourth proportional to 15,237,068.72, 21,027,761.36 and 8,361,796.84 is: 11,539,612.49
Step by Step Solution
- Step 1: Write the proportion equation
15,237,068.72 : 21,027,761.36 = 8,361,796.84 : x - Step 2: Convert to fraction form
15,237,068.72/21,027,761.36 = 8,361,796.84/x - Step 3: Cross multiply
15,237,068.72x = 21,027,761.36 × 8,361,796.84 - Step 4: Simplify right side
15,237,068.72x = 175,829,868,492,322.09 - Step 5: Solve for x
x = 175,829,868,492,322.09/15,237,068.72 - Step 6: Final answer
x = 11,539,612.49
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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.