Finding the Fourth Proportional to 121,863,539.34, 168,171,684.28 and 69,653,695.97
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Solution
The fourth proportional to 121,863,539.34, 168,171,684.28 and 69,653,695.97 is: 96,122,100.44
Step by Step Solution
- Step 1: Write the proportion equation
121,863,539.34 : 168,171,684.28 = 69,653,695.97 : x - Step 2: Convert to fraction form
121,863,539.34/168,171,684.28 = 69,653,695.97/x - Step 3: Cross multiply
121,863,539.34x = 168,171,684.28 × 69,653,695.97 - Step 4: Simplify right side
121,863,539.34x = 11,713,779,368,239,696 - Step 5: Solve for x
x = 11,713,779,368,239,696/121,863,539.34 - Step 6: Final answer
x = 96,122,100.44
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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.