Finding the Fourth Proportional to 85,457,190.34, 117,930,763.11 and 46,299,940.30
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Solution
The fourth proportional to 85,457,190.34, 117,930,763.11 and 46,299,940.30 is: 63,893,831.17
Step by Step Solution
- Step 1: Write the proportion equation
85,457,190.34 : 117,930,763.11 = 46,299,940.30 : x - Step 2: Convert to fraction form
85,457,190.34/117,930,763.11 = 46,299,940.30/x - Step 3: Cross multiply
85,457,190.34x = 117,930,763.11 × 46,299,940.30 - Step 4: Simplify right side
85,457,190.34x = 5,460,187,291,526,442 - Step 5: Solve for x
x = 5,460,187,291,526,442/85,457,190.34 - Step 6: Final answer
x = 63,893,831.17
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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.