Finding the Fourth Proportional to 1,263,252,356.64, 1,743,171,261.12 and 698,725,089
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Solution
The fourth proportional to 1,263,252,356.64, 1,743,171,261.12 and 698,725,089 is: 964,175,913.20
Step by Step Solution
- Step 1: Write the proportion equation
1,263,252,356.64 : 1,743,171,261.12 = 698,725,089 : x - Step 2: Convert to fraction form
1,263,252,356.64/1,743,171,261.12 = 698,725,089/x - Step 3: Cross multiply
1,263,252,356.64x = 1,743,171,261.12 × 698,725,089 - Step 4: Simplify right side
1,263,252,356.64x = 1,217,997,494,568,314,112 - Step 5: Solve for x
x = 1,217,997,494,568,314,112/1,263,252,356.64 - Step 6: Final answer
x = 964,175,913.20
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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.