Finding the Fourth Proportional to 1,702,613,921.36, 2,349,606,172.21 and 920,332,769.36
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Solution
The fourth proportional to 1,702,613,921.36, 2,349,606,172.21 and 920,332,769.36 is: 1,270,058,659.95
Step by Step Solution
- Step 1: Write the proportion equation
1,702,613,921.36 : 2,349,606,172.21 = 920,332,769.36 : x - Step 2: Convert to fraction form
1,702,613,921.36/2,349,606,172.21 = 920,332,769.36/x - Step 3: Cross multiply
1,702,613,921.36x = 2,349,606,172.21 × 920,332,769.36 - Step 4: Simplify right side
1,702,613,921.36x = 2,162,419,555,361,329,408 - Step 5: Solve for x
x = 2,162,419,555,361,329,408/1,702,613,921.36 - Step 6: Final answer
x = 1,270,058,659.95
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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.