Finding the Fourth Proportional to 1,430,295,989.10, 1,973,918,906.07 and 858,100,497.95
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Solution
The fourth proportional to 1,430,295,989.10, 1,973,918,906.07 and 858,100,497.95 is: 1,184,244,945.88
Step by Step Solution
- Step 1: Write the proportion equation
1,430,295,989.10 : 1,973,918,906.07 = 858,100,497.95 : x - Step 2: Convert to fraction form
1,430,295,989.10/1,973,918,906.07 = 858,100,497.95/x - Step 3: Cross multiply
1,430,295,989.10x = 1,973,918,906.07 × 858,100,497.95 - Step 4: Simplify right side
1,430,295,989.10x = 1,693,820,796,202,252,544 - Step 5: Solve for x
x = 1,693,820,796,202,252,544/1,430,295,989.10 - Step 6: Final answer
x = 1,184,244,945.88
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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.