Finding the Fourth Proportional to 1,316,131,672.34, 1,974,197,388.64 and 579,201,576.68
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Solution
The fourth proportional to 1,316,131,672.34, 1,974,197,388.64 and 579,201,576.68 is: 868,802,312.27
Step by Step Solution
- Step 1: Write the proportion equation
1,316,131,672.34 : 1,974,197,388.64 = 579,201,576.68 : x - Step 2: Convert to fraction form
1,316,131,672.34/1,974,197,388.64 = 579,201,576.68/x - Step 3: Cross multiply
1,316,131,672.34x = 1,974,197,388.64 × 579,201,576.68 - Step 4: Simplify right side
1,316,131,672.34x = 1,143,458,240,177,826,688 - Step 5: Solve for x
x = 1,143,458,240,177,826,688/1,316,131,672.34 - Step 6: Final answer
x = 868,802,312.27
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.