Finding the Fourth Proportional to 15,292,526.18, 21,103,684.92 and 8,323,253.66
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Solution
The fourth proportional to 15,292,526.18, 21,103,684.92 and 8,323,253.66 is: 11,486,089.40
Step by Step Solution
- Step 1: Write the proportion equation
15,292,526.18 : 21,103,684.92 = 8,323,253.66 : x - Step 2: Convert to fraction form
15,292,526.18/21,103,684.92 = 8,323,253.66/x - Step 3: Cross multiply
15,292,526.18x = 21,103,684.92 × 8,323,253.66 - Step 4: Simplify right side
15,292,526.18x = 175,651,322,802,636.03 - Step 5: Solve for x
x = 175,651,322,802,636.03/15,292,526.18 - Step 6: Final answer
x = 11,486,089.40
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1.5x scale
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.