Finding the Fourth Proportional to 139,288,526.06, 192,158,541.15 and 86,986,761.26
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Solution
The fourth proportional to 139,288,526.06, 192,158,541.15 and 86,986,761.26 is: 120,004,494.38
Step by Step Solution
- Step 1: Write the proportion equation
139,288,526.06 : 192,158,541.15 = 86,986,761.26 : x - Step 2: Convert to fraction form
139,288,526.06/192,158,541.15 = 86,986,761.26/x - Step 3: Cross multiply
139,288,526.06x = 192,158,541.15 × 86,986,761.26 - Step 4: Simplify right side
139,288,526.06x = 16,715,249,143,084,938 - Step 5: Solve for x
x = 16,715,249,143,084,938/139,288,526.06 - Step 6: Final answer
x = 120,004,494.38
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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.