Finding the Fourth Proportional to 21,559,950.60, 32,292,686.70 and 19,166,497.80
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Solution
The fourth proportional to 21,559,950.60, 32,292,686.70 and 19,166,497.80 is: 28,707,751.70
Step by Step Solution
- Step 1: Write the proportion equation
21,559,950.60 : 32,292,686.70 = 19,166,497.80 : x - Step 2: Convert to fraction form
21,559,950.60/32,292,686.70 = 19,166,497.80/x - Step 3: Cross multiply
21,559,950.60x = 32,292,686.70 × 19,166,497.80 - Step 4: Simplify right side
21,559,950.60x = 618,937,708,591,639.25 - Step 5: Solve for x
x = 618,937,708,591,639.25/21,559,950.60 - Step 6: Final answer
x = 28,707,751.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.