Finding the Fourth Proportional to 1,622,606,776.68, 2,239,248,039.48 and 917,744,965.44
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Solution
The fourth proportional to 1,622,606,776.68, 2,239,248,039.48 and 917,744,965.44 is: 1,266,516,721.20
Step by Step Solution
- Step 1: Write the proportion equation
1,622,606,776.68 : 2,239,248,039.48 = 917,744,965.44 : x - Step 2: Convert to fraction form
1,622,606,776.68/2,239,248,039.48 = 917,744,965.44/x - Step 3: Cross multiply
1,622,606,776.68x = 2,239,248,039.48 × 917,744,965.44 - Step 4: Simplify right side
1,622,606,776.68x = 2,055,058,614,604,160,512 - Step 5: Solve for x
x = 2,055,058,614,604,160,512/1,622,606,776.68 - Step 6: Final answer
x = 1,266,516,721.20
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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.