Finding the Fourth Proportional to 15,292,526.29, 21,103,685.09 and 8,323,253.79
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Solution
The fourth proportional to 15,292,526.29, 21,103,685.09 and 8,323,253.79 is: 11,486,089.58
Step by Step Solution
- Step 1: Write the proportion equation
15,292,526.29 : 21,103,685.09 = 8,323,253.79 : x - Step 2: Convert to fraction form
15,292,526.29/21,103,685.09 = 8,323,253.79/x - Step 3: Cross multiply
15,292,526.29x = 21,103,685.09 × 8,323,253.79 - Step 4: Simplify right side
15,292,526.29x = 175,651,326,908,309 - Step 5: Solve for x
x = 175,651,326,908,309/15,292,526.29 - Step 6: Final answer
x = 11,486,089.58
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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.