Finding the Fourth Proportional to 121,863,537.59, 168,171,681.89 and 69,653,694.26
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Solution
The fourth proportional to 121,863,537.59, 168,171,681.89 and 69,653,694.26 is: 96,122,098.08
Step by Step Solution
- Step 1: Write the proportion equation
121,863,537.59 : 168,171,681.89 = 69,653,694.26 : x - Step 2: Convert to fraction form
121,863,537.59/168,171,681.89 = 69,653,694.26/x - Step 3: Cross multiply
121,863,537.59x = 168,171,681.89 × 69,653,694.26 - Step 4: Simplify right side
121,863,537.59x = 11,713,778,912,874,406 - Step 5: Solve for x
x = 11,713,778,912,874,406/121,863,537.59 - Step 6: Final answer
x = 96,122,098.08
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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.