Finding the Fourth Proportional to 19,634,930.80, 29,442,542.38 and 11,440,221.30
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Solution
The fourth proportional to 19,634,930.80, 29,442,542.38 and 11,440,221.30 is: 17,154,590.65
Step by Step Solution
- Step 1: Write the proportion equation
19,634,930.80 : 29,442,542.38 = 11,440,221.30 : x - Step 2: Convert to fraction form
19,634,930.80/29,442,542.38 = 11,440,221.30/x - Step 3: Cross multiply
19,634,930.80x = 29,442,542.38 × 11,440,221.30 - Step 4: Simplify right side
19,634,930.80x = 336,829,200,433,228.19 - Step 5: Solve for x
x = 336,829,200,433,228.19/19,634,930.80 - Step 6: Final answer
x = 17,154,590.65
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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.