Finding the Fourth Proportional to 944,785,422.20, 1,417,178,133.30 and 715,202,910.20
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Solution
The fourth proportional to 944,785,422.20, 1,417,178,133.30 and 715,202,910.20 is: 1,072,804,365.30
Step by Step Solution
- Step 1: Write the proportion equation
944,785,422.20 : 1,417,178,133.30 = 715,202,910.20 : x - Step 2: Convert to fraction form
944,785,422.20/1,417,178,133.30 = 715,202,910.20/x - Step 3: Cross multiply
944,785,422.20x = 1,417,178,133.30 × 715,202,910.20 - Step 4: Simplify right side
944,785,422.20x = 1,013,569,925,207,963,520 - Step 5: Solve for x
x = 1,013,569,925,207,963,520/944,785,422.20 - Step 6: Final answer
x = 1,072,804,365.30
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Double scale
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Similar ratio
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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.