Finding the Fourth Proportional to 105,331,246.18, 145,362,769.80 and 58,918,732.18
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Solution
The fourth proportional to 105,331,246.18, 145,362,769.80 and 58,918,732.18 is: 81,311,010.87
Step by Step Solution
- Step 1: Write the proportion equation
105,331,246.18 : 145,362,769.80 = 58,918,732.18 : x - Step 2: Convert to fraction form
105,331,246.18/145,362,769.80 = 58,918,732.18/x - Step 3: Cross multiply
105,331,246.18x = 145,362,769.80 × 58,918,732.18 - Step 4: Simplify right side
105,331,246.18x = 8,564,590,102,789,193 - Step 5: Solve for x
x = 8,564,590,102,789,193/105,331,246.18 - Step 6: Final answer
x = 81,311,010.87
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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.