Finding the Fourth Proportional to 861,941,605.14, 1,292,912,424.63 and 206,892,631.26
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Solution
The fourth proportional to 861,941,605.14, 1,292,912,424.63 and 206,892,631.26 is: 310,338,950.95
Step by Step Solution
- Step 1: Write the proportion equation
861,941,605.14 : 1,292,912,424.63 = 206,892,631.26 : x - Step 2: Convert to fraction form
861,941,605.14/1,292,912,424.63 = 206,892,631.26/x - Step 3: Cross multiply
861,941,605.14x = 1,292,912,424.63 × 206,892,631.26 - Step 4: Simplify right side
861,941,605.14x = 267,494,053,520,447,136 - Step 5: Solve for x
x = 267,494,053,520,447,136/861,941,605.14 - Step 6: Final answer
x = 310,338,950.95
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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.