Finding the Fourth Proportional to 83,651,782.09, 115,391,379.34 and 52,235,294.47
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Solution
The fourth proportional to 83,651,782.09, 115,391,379.34 and 52,235,294.47 is: 72,054,683.45
Step by Step Solution
- Step 1: Write the proportion equation
83,651,782.09 : 115,391,379.34 = 52,235,294.47 : x - Step 2: Convert to fraction form
83,651,782.09/115,391,379.34 = 52,235,294.47/x - Step 3: Cross multiply
83,651,782.09x = 115,391,379.34 × 52,235,294.47 - Step 4: Simplify right side
83,651,782.09x = 6,027,502,678,874,759 - Step 5: Solve for x
x = 6,027,502,678,874,759/83,651,782.09 - Step 6: Final answer
x = 72,054,683.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.