Finding the Fourth Proportional to 83,547,197.28, 125,412,442.56 and 66,385,720.80
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Solution
The fourth proportional to 83,547,197.28, 125,412,442.56 and 66,385,720.80 is: 99,651,402.65
Step by Step Solution
- Step 1: Write the proportion equation
83,547,197.28 : 125,412,442.56 = 66,385,720.80 : x - Step 2: Convert to fraction form
83,547,197.28/125,412,442.56 = 66,385,720.80/x - Step 3: Cross multiply
83,547,197.28x = 125,412,442.56 × 66,385,720.80 - Step 4: Simplify right side
83,547,197.28x = 8,325,595,396,634,197 - Step 5: Solve for x
x = 8,325,595,396,634,197/83,547,197.28 - Step 6: Final answer
x = 99,651,402.65
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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.