Finding the Fourth Proportional to 15,739,327.44, 21,720,316.88 and 9,125,201.28
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Solution
The fourth proportional to 15,739,327.44, 21,720,316.88 and 9,125,201.28 is: 12,592,803.86
Step by Step Solution
- Step 1: Write the proportion equation
15,739,327.44 : 21,720,316.88 = 9,125,201.28 : x - Step 2: Convert to fraction form
15,739,327.44/21,720,316.88 = 9,125,201.28/x - Step 3: Cross multiply
15,739,327.44x = 21,720,316.88 × 9,125,201.28 - Step 4: Simplify right side
15,739,327.44x = 198,202,263,395,381.59 - Step 5: Solve for x
x = 198,202,263,395,381.59/15,739,327.44 - Step 6: Final answer
x = 12,592,803.86
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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.