Finding the Fourth Proportional to 90,034,516.13, 134,835,975.61 and 46,199,921.09
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Solution
The fourth proportional to 90,034,516.13, 134,835,975.61 and 46,199,921.09 is: 69,189,147.68
Step by Step Solution
- Step 1: Write the proportion equation
90,034,516.13 : 134,835,975.61 = 46,199,921.09 : x - Step 2: Convert to fraction form
90,034,516.13/134,835,975.61 = 46,199,921.09/x - Step 3: Cross multiply
90,034,516.13x = 134,835,975.61 × 46,199,921.09 - Step 4: Simplify right side
90,034,516.13x = 6,229,411,432,485,484 - Step 5: Solve for x
x = 6,229,411,432,485,484/90,034,516.13 - Step 6: Final answer
x = 69,189,147.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.