Finding the Fourth Proportional to 1,729,651,831.36, 2,386,907,641.92 and 936,679,664.32
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Solution
The fourth proportional to 1,729,651,831.36, 2,386,907,641.92 and 936,679,664.32 is: 1,292,611,500.34
Step by Step Solution
- Step 1: Write the proportion equation
1,729,651,831.36 : 2,386,907,641.92 = 936,679,664.32 : x - Step 2: Convert to fraction form
1,729,651,831.36/2,386,907,641.92 = 936,679,664.32/x - Step 3: Cross multiply
1,729,651,831.36x = 2,386,907,641.92 × 936,679,664.32 - Step 4: Simplify right side
1,729,651,831.36x = 2,235,767,848,796,468,480 - Step 5: Solve for x
x = 2,235,767,848,796,468,480/1,729,651,831.36 - Step 6: Final answer
x = 1,292,611,500.34
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.