Finding the Fourth Proportional to 21,033,083.68, 31,549,625.60 and 5,076,731.68
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Solution
The fourth proportional to 21,033,083.68, 31,549,625.60 and 5,076,731.68 is: 7,615,097.54
Step by Step Solution
- Step 1: Write the proportion equation
21,033,083.68 : 31,549,625.60 = 5,076,731.68 : x - Step 2: Convert to fraction form
21,033,083.68/31,549,625.60 = 5,076,731.68/x - Step 3: Cross multiply
21,033,083.68x = 31,549,625.60 × 5,076,731.68 - Step 4: Simplify right side
21,033,083.68x = 160,168,983,775,659 - Step 5: Solve for x
x = 160,168,983,775,659/21,033,083.68 - Step 6: Final answer
x = 7,615,097.54
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.