Finding the Fourth Proportional to 105,205,121.39, 145,187,551.24 and 58,795,373.95
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Solution
The fourth proportional to 105,205,121.39, 145,187,551.24 and 58,795,373.95 is: 81,140,121.84
Step by Step Solution
- Step 1: Write the proportion equation
105,205,121.39 : 145,187,551.24 = 58,795,373.95 : x - Step 2: Convert to fraction form
105,205,121.39/145,187,551.24 = 58,795,373.95/x - Step 3: Cross multiply
105,205,121.39x = 145,187,551.24 × 58,795,373.95 - Step 4: Simplify right side
105,205,121.39x = 8,536,356,367,530,629 - Step 5: Solve for x
x = 8,536,356,367,530,629/105,205,121.39 - Step 6: Final answer
x = 81,140,121.84
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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.