Finding the Fourth Proportional to 954,257,959.40, 1,431,386,939.10 and 709,369,946.60
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Solution
The fourth proportional to 954,257,959.40, 1,431,386,939.10 and 709,369,946.60 is: 1,064,054,919.90
Step by Step Solution
- Step 1: Write the proportion equation
954,257,959.40 : 1,431,386,939.10 = 709,369,946.60 : x - Step 2: Convert to fraction form
954,257,959.40/1,431,386,939.10 = 709,369,946.60/x - Step 3: Cross multiply
954,257,959.40x = 1,431,386,939.10 × 709,369,946.60 - Step 4: Simplify right side
954,257,959.40x = 1,015,382,876,553,304,448 - Step 5: Solve for x
x = 1,015,382,876,553,304,448/954,257,959.40 - Step 6: Final answer
x = 1,064,054,919.90
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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.