Finding the Fourth Proportional to 1,410,051,507.80, 2,115,077,261.70 and 858,241,664.60
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Solution
The fourth proportional to 1,410,051,507.80, 2,115,077,261.70 and 858,241,664.60 is: 1,287,362,496.90
Step by Step Solution
- Step 1: Write the proportion equation
1,410,051,507.80 : 2,115,077,261.70 = 858,241,664.60 : x - Step 2: Convert to fraction form
1,410,051,507.80/2,115,077,261.70 = 858,241,664.60/x - Step 3: Cross multiply
1,410,051,507.80x = 2,115,077,261.70 × 858,241,664.60 - Step 4: Simplify right side
1,410,051,507.80x = 1,815,247,429,839,017,984 - Step 5: Solve for x
x = 1,815,247,429,839,017,984/1,410,051,507.80 - Step 6: Final answer
x = 1,287,362,496.90
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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.