Finding the Fourth Proportional to 19,394,835.81, 29,092,399.55 and 8,609,237.07
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Solution
The fourth proportional to 19,394,835.81, 29,092,399.55 and 8,609,237.07 is: 12,913,920.34
Step by Step Solution
- Step 1: Write the proportion equation
19,394,835.81 : 29,092,399.55 = 8,609,237.07 : x - Step 2: Convert to fraction form
19,394,835.81/29,092,399.55 = 8,609,237.07/x - Step 3: Cross multiply
19,394,835.81x = 29,092,399.55 × 8,609,237.07 - Step 4: Simplify right side
19,394,835.81x = 250,463,364,661,111.34 - Step 5: Solve for x
x = 250,463,364,661,111.34/19,394,835.81 - Step 6: Final answer
x = 12,913,920.34
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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.