Finding the Fourth Proportional to 919,034,442.91, 1,371,383,727.62 and 819,985,258.54
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Solution
The fourth proportional to 919,034,442.91, 1,371,383,727.62 and 819,985,258.54 is: 1,223,582,477.38
Step by Step Solution
- Step 1: Write the proportion equation
919,034,442.91 : 1,371,383,727.62 = 819,985,258.54 : x - Step 2: Convert to fraction form
919,034,442.91/1,371,383,727.62 = 819,985,258.54/x - Step 3: Cross multiply
919,034,442.91x = 1,371,383,727.62 × 819,985,258.54 - Step 4: Simplify right side
919,034,442.91x = 1,124,514,440,450,034,432 - Step 5: Solve for x
x = 1,124,514,440,450,034,432/919,034,442.91 - Step 6: Final answer
x = 1,223,582,477.38
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.