Finding the Fourth Proportional to 103,248,220.20, 154,872,330.30 and 72,343,285.80
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Solution
The fourth proportional to 103,248,220.20, 154,872,330.30 and 72,343,285.80 is: 108,514,928.70
Step by Step Solution
- Step 1: Write the proportion equation
103,248,220.20 : 154,872,330.30 = 72,343,285.80 : x - Step 2: Convert to fraction form
103,248,220.20/154,872,330.30 = 72,343,285.80/x - Step 3: Cross multiply
103,248,220.20x = 154,872,330.30 × 72,343,285.80 - Step 4: Simplify right side
103,248,220.20x = 11,203,973,253,404,900 - Step 5: Solve for x
x = 11,203,973,253,404,900/103,248,220.20 - Step 6: Final answer
x = 108,514,928.70
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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.