Finding the Fourth Proportional to 435,468,021.80, 653,202,032.70 and 193,603,317.80
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Solution
The fourth proportional to 435,468,021.80, 653,202,032.70 and 193,603,317.80 is: 290,404,976.70
Step by Step Solution
- Step 1: Write the proportion equation
435,468,021.80 : 653,202,032.70 = 193,603,317.80 : x - Step 2: Convert to fraction form
435,468,021.80/653,202,032.70 = 193,603,317.80/x - Step 3: Cross multiply
435,468,021.80x = 653,202,032.70 × 193,603,317.80 - Step 4: Simplify right side
435,468,021.80x = 126,462,080,724,424,112 - Step 5: Solve for x
x = 126,462,080,724,424,112/435,468,021.80 - Step 6: Final answer
x = 290,404,976.70
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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.