Finding the Fourth Proportional to 819,801,252.70, 1,229,701,879.05 and 740,722,831.90
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Solution
The fourth proportional to 819,801,252.70, 1,229,701,879.05 and 740,722,831.90 is: 1,111,084,247.85
Step by Step Solution
- Step 1: Write the proportion equation
819,801,252.70 : 1,229,701,879.05 = 740,722,831.90 : x - Step 2: Convert to fraction form
819,801,252.70/1,229,701,879.05 = 740,722,831.90/x - Step 3: Cross multiply
819,801,252.70x = 1,229,701,879.05 × 740,722,831.90 - Step 4: Simplify right side
819,801,252.70x = 910,868,258,242,667,264 - Step 5: Solve for x
x = 910,868,258,242,667,264/819,801,252.70 - Step 6: Final answer
x = 1,111,084,247.85
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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.