Finding the Fourth Proportional to 70,404,490.29, 97,164,187.80 and 39,470,638.26
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Solution
The fourth proportional to 70,404,490.29, 97,164,187.80 and 39,470,638.26 is: 54,472,839.63
Step by Step Solution
- Step 1: Write the proportion equation
70,404,490.29 : 97,164,187.80 = 39,470,638.26 : x - Step 2: Convert to fraction form
70,404,490.29/97,164,187.80 = 39,470,638.26/x - Step 3: Cross multiply
70,404,490.29x = 97,164,187.80 × 39,470,638.26 - Step 4: Simplify right side
70,404,490.29x = 3,835,132,508,480,505 - Step 5: Solve for x
x = 3,835,132,508,480,505/70,404,490.29 - Step 6: Final answer
x = 54,472,839.63
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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.