Finding the Fourth Proportional to 139,227,407.24, 207,819,129.40 and 128,967,053
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Solution
The fourth proportional to 139,227,407.24, 207,819,129.40 and 128,967,053 is: 192,503,912.89
Step by Step Solution
- Step 1: Write the proportion equation
139,227,407.24 : 207,819,129.40 = 128,967,053 : x - Step 2: Convert to fraction form
139,227,407.24/207,819,129.40 = 128,967,053/x - Step 3: Cross multiply
139,227,407.24x = 207,819,129.40 × 128,967,053 - Step 4: Simplify right side
139,227,407.24x = 26,801,820,675,743,660 - Step 5: Solve for x
x = 26,801,820,675,743,660/139,227,407.24 - Step 6: Final answer
x = 192,503,912.89
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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.