Finding the Fourth Proportional to 15,408,321.68, 21,264,152.32 and 8,532,803.75
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Solution
The fourth proportional to 15,408,321.68, 21,264,152.32 and 8,532,803.75 is: 11,775,639.31
Step by Step Solution
- Step 1: Write the proportion equation
15,408,321.68 : 21,264,152.32 = 8,532,803.75 : x - Step 2: Convert to fraction form
15,408,321.68/21,264,152.32 = 8,532,803.75/x - Step 3: Cross multiply
15,408,321.68x = 21,264,152.32 × 8,532,803.75 - Step 4: Simplify right side
15,408,321.68x = 181,442,838,561,012.41 - Step 5: Solve for x
x = 181,442,838,561,012.41/15,408,321.68 - Step 6: Final answer
x = 11,775,639.31
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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.