Finding the Fourth Proportional to 230,074,128.97, 317,510,132.20 and 136,068,859.08
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Solution
The fourth proportional to 230,074,128.97, 317,510,132.20 and 136,068,859.08 is: 187,779,658.79
Step by Step Solution
- Step 1: Write the proportion equation
230,074,128.97 : 317,510,132.20 = 136,068,859.08 : x - Step 2: Convert to fraction form
230,074,128.97/317,510,132.20 = 136,068,859.08/x - Step 3: Cross multiply
230,074,128.97x = 317,510,132.20 × 136,068,859.08 - Step 4: Simplify right side
230,074,128.97x = 43,203,241,434,113,632 - Step 5: Solve for x
x = 43,203,241,434,113,632/230,074,128.97 - Step 6: Final answer
x = 187,779,658.79
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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.