Finding the Fourth Proportional to 1,239,090,410.16, 1,709,879,857.74 and 682,064,659.44
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Solution
The fourth proportional to 1,239,090,410.16, 1,709,879,857.74 and 682,064,659.44 is: 941,213,500.88
Step by Step Solution
- Step 1: Write the proportion equation
1,239,090,410.16 : 1,709,879,857.74 = 682,064,659.44 : x - Step 2: Convert to fraction form
1,239,090,410.16/1,709,879,857.74 = 682,064,659.44/x - Step 3: Cross multiply
1,239,090,410.16x = 1,709,879,857.74 × 682,064,659.44 - Step 4: Simplify right side
1,239,090,410.16x = 1,166,248,622,852,748,800 - Step 5: Solve for x
x = 1,166,248,622,852,748,800/1,239,090,410.16 - Step 6: Final answer
x = 941,213,500.88
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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.