Finding the Fourth Proportional to 1,296,842,326.68, 1,789,621,046.44 and 702,122,055.96
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Solution
The fourth proportional to 1,296,842,326.68, 1,789,621,046.44 and 702,122,055.96 is: 968,916,870.36
Step by Step Solution
- Step 1: Write the proportion equation
1,296,842,326.68 : 1,789,621,046.44 = 702,122,055.96 : x - Step 2: Convert to fraction form
1,296,842,326.68/1,789,621,046.44 = 702,122,055.96/x - Step 3: Cross multiply
1,296,842,326.68x = 1,789,621,046.44 × 702,122,055.96 - Step 4: Simplify right side
1,296,842,326.68x = 1,256,532,408,515,739,648 - Step 5: Solve for x
x = 1,256,532,408,515,739,648/1,296,842,326.68 - Step 6: Final answer
x = 968,916,870.36
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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.