Finding the Fourth Proportional to 15,292,527.30, 21,103,686.47 and 8,323,254.79
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Solution
The fourth proportional to 15,292,527.30, 21,103,686.47 and 8,323,254.79 is: 11,486,090.95
Step by Step Solution
- Step 1: Write the proportion equation
15,292,527.30 : 21,103,686.47 = 8,323,254.79 : x - Step 2: Convert to fraction form
15,292,527.30/21,103,686.47 = 8,323,254.79/x - Step 3: Cross multiply
15,292,527.30x = 21,103,686.47 × 8,323,254.79 - Step 4: Simplify right side
15,292,527.30x = 175,651,359,466,134.59 - Step 5: Solve for x
x = 175,651,359,466,134.59/15,292,527.30 - Step 6: Final answer
x = 11,486,090.95
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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.