Finding the Fourth Proportional to 28,731,225.07, 39,649,927.92 and 15,679,324.68
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Solution
The fourth proportional to 28,731,225.07, 39,649,927.92 and 15,679,324.68 is: 21,637,925.01
Step by Step Solution
- Step 1: Write the proportion equation
28,731,225.07 : 39,649,927.92 = 15,679,324.68 : x - Step 2: Convert to fraction form
28,731,225.07/39,649,927.92 = 15,679,324.68/x - Step 3: Cross multiply
28,731,225.07x = 39,649,927.92 × 15,679,324.68 - Step 4: Simplify right side
28,731,225.07x = 621,684,093,396,277.12 - Step 5: Solve for x
x = 621,684,093,396,277.12/28,731,225.07 - Step 6: Final answer
x = 21,637,925.01
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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.