Finding the Fourth Proportional to 108,007,652.79, 149,034,526.97 and 65,599,143.65
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Solution
The fourth proportional to 108,007,652.79, 149,034,526.97 and 65,599,143.65 is: 90,517,079.94
Step by Step Solution
- Step 1: Write the proportion equation
108,007,652.79 : 149,034,526.97 = 65,599,143.65 : x - Step 2: Convert to fraction form
108,007,652.79/149,034,526.97 = 65,599,143.65/x - Step 3: Cross multiply
108,007,652.79x = 149,034,526.97 × 65,599,143.65 - Step 4: Simplify right side
108,007,652.79x = 9,776,537,342,441,662 - Step 5: Solve for x
x = 9,776,537,342,441,662/108,007,652.79 - Step 6: Final answer
x = 90,517,079.94
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1.5x scale
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.