Finding the Fourth Proportional to 122,340,098.36, 168,829,326.30 and 66,585,918.56
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Solution
The fourth proportional to 122,340,098.36, 168,829,326.30 and 66,585,918.56 is: 91,888,562.48
Step by Step Solution
- Step 1: Write the proportion equation
122,340,098.36 : 168,829,326.30 = 66,585,918.56 : x - Step 2: Convert to fraction form
122,340,098.36/168,829,326.30 = 66,585,918.56/x - Step 3: Cross multiply
122,340,098.36x = 168,829,326.30 × 66,585,918.56 - Step 4: Simplify right side
122,340,098.36x = 11,241,655,771,551,468 - Step 5: Solve for x
x = 11,241,655,771,551,468/122,340,098.36 - Step 6: Final answer
x = 91,888,562.48
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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.