Finding the Fourth Proportional to 264,374,386.20, 396,561,579.30 and 209,954,827.80
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Solution
The fourth proportional to 264,374,386.20, 396,561,579.30 and 209,954,827.80 is: 314,932,241.70
Step by Step Solution
- Step 1: Write the proportion equation
264,374,386.20 : 396,561,579.30 = 209,954,827.80 : x - Step 2: Convert to fraction form
264,374,386.20/396,561,579.30 = 209,954,827.80/x - Step 3: Cross multiply
264,374,386.20x = 396,561,579.30 × 209,954,827.80 - Step 4: Simplify right side
264,374,386.20x = 83,260,018,094,027,552 - Step 5: Solve for x
x = 83,260,018,094,027,552/264,374,386.20 - Step 6: Final answer
x = 314,932,241.70
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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.