Finding the Fourth Proportional to 19,488,036.70, 29,232,055.05 and 18,442,942.30
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Solution
The fourth proportional to 19,488,036.70, 29,232,055.05 and 18,442,942.30 is: 27,664,413.45
Step by Step Solution
- Step 1: Write the proportion equation
19,488,036.70 : 29,232,055.05 = 18,442,942.30 : x - Step 2: Convert to fraction form
19,488,036.70/29,232,055.05 = 18,442,942.30/x - Step 3: Cross multiply
19,488,036.70x = 29,232,055.05 × 18,442,942.30 - Step 4: Simplify right side
19,488,036.70x = 539,125,104,597,573.62 - Step 5: Solve for x
x = 539,125,104,597,573.62/19,488,036.70 - Step 6: Final answer
x = 27,664,413.45
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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.