Finding the Fourth Proportional to 314,367,431.70, 471,551,147.55 and 142,180,547.70
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Solution
The fourth proportional to 314,367,431.70, 471,551,147.55 and 142,180,547.70 is: 213,270,821.55
Step by Step Solution
- Step 1: Write the proportion equation
314,367,431.70 : 471,551,147.55 = 142,180,547.70 : x - Step 2: Convert to fraction form
314,367,431.70/471,551,147.55 = 142,180,547.70/x - Step 3: Cross multiply
314,367,431.70x = 471,551,147.55 × 142,180,547.70 - Step 4: Simplify right side
314,367,431.70x = 67,045,400,427,222,512 - Step 5: Solve for x
x = 67,045,400,427,222,512/314,367,431.70 - Step 6: Final answer
x = 213,270,821.55
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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.