Finding the Fourth Proportional to 70,579,052.09, 97,394,822.13 and 39,216,028.67
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Solution
The fourth proportional to 70,579,052.09, 97,394,822.13 and 39,216,028.67 is: 54,115,747.15
Step by Step Solution
- Step 1: Write the proportion equation
70,579,052.09 : 97,394,822.13 = 39,216,028.67 : x - Step 2: Convert to fraction form
70,579,052.09/97,394,822.13 = 39,216,028.67/x - Step 3: Cross multiply
70,579,052.09x = 97,394,822.13 × 39,216,028.67 - Step 4: Simplify right side
70,579,052.09x = 3,819,438,136,472,656 - Step 5: Solve for x
x = 3,819,438,136,472,656/70,579,052.09 - Step 6: Final answer
x = 54,115,747.15
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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.