Finding the Fourth Proportional to 135,121,531.46, 186,462,717.86 and 73,240,541.42
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Solution
The fourth proportional to 135,121,531.46, 186,462,717.86 and 73,240,541.42 is: 101,069,239.39
Step by Step Solution
- Step 1: Write the proportion equation
135,121,531.46 : 186,462,717.86 = 73,240,541.42 : x - Step 2: Convert to fraction form
135,121,531.46/186,462,717.86 = 73,240,541.42/x - Step 3: Cross multiply
135,121,531.46x = 186,462,717.86 × 73,240,541.42 - Step 4: Simplify right side
135,121,531.46x = 13,656,630,409,961,894 - Step 5: Solve for x
x = 13,656,630,409,961,894/135,121,531.46 - Step 6: Final answer
x = 101,069,239.39
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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.