Finding the Fourth Proportional to 784,516,656.80, 1,174,651,618.80 and 614,647,344.80
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Solution
The fourth proportional to 784,516,656.80, 1,174,651,618.80 and 614,647,344.80 is: 920,307,417.70
Step by Step Solution
- Step 1: Write the proportion equation
784,516,656.80 : 1,174,651,618.80 = 614,647,344.80 : x - Step 2: Convert to fraction form
784,516,656.80/1,174,651,618.80 = 614,647,344.80/x - Step 3: Cross multiply
784,516,656.80x = 1,174,651,618.80 × 614,647,344.80 - Step 4: Simplify right side
784,516,656.80x = 721,996,498,560,441,728 - Step 5: Solve for x
x = 721,996,498,560,441,728/784,516,656.80 - Step 6: Final answer
x = 920,307,417.70
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1.5x scale
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.