Finding the Fourth Proportional to 314,930,756.20, 472,396,134.30 and 142,413,197.80
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Solution
The fourth proportional to 314,930,756.20, 472,396,134.30 and 142,413,197.80 is: 213,619,796.70
Step by Step Solution
- Step 1: Write the proportion equation
314,930,756.20 : 472,396,134.30 = 142,413,197.80 : x - Step 2: Convert to fraction form
314,930,756.20/472,396,134.30 = 142,413,197.80/x - Step 3: Cross multiply
314,930,756.20x = 472,396,134.30 × 142,413,197.80 - Step 4: Simplify right side
314,930,756.20x = 67,275,444,114,021,272 - Step 5: Solve for x
x = 67,275,444,114,021,272/314,930,756.20 - Step 6: Final answer
x = 213,619,796.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.