Finding the Fourth Proportional to 741,585,299.40, 1,116,817,218.80 and 675,390,876.78
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Solution
The fourth proportional to 741,585,299.40, 1,116,817,218.80 and 675,390,876.78 is: 1,017,129,332.55
Step by Step Solution
- Step 1: Write the proportion equation
741,585,299.40 : 1,116,817,218.80 = 675,390,876.78 : x - Step 2: Convert to fraction form
741,585,299.40/1,116,817,218.80 = 675,390,876.78/x - Step 3: Cross multiply
741,585,299.40x = 1,116,817,218.80 × 675,390,876.78 - Step 4: Simplify right side
741,585,299.40x = 754,288,160,608,333,056 - Step 5: Solve for x
x = 754,288,160,608,333,056/741,585,299.40 - Step 6: Final answer
x = 1,017,129,332.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.