Finding the Fourth Proportional to 13,324,512.93, 18,387,954.62 and 7,817,981.48
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Solution
The fourth proportional to 13,324,512.93, 18,387,954.62 and 7,817,981.48 is: 10,788,888.82
Step by Step Solution
- Step 1: Write the proportion equation
13,324,512.93 : 18,387,954.62 = 7,817,981.48 : x - Step 2: Convert to fraction form
13,324,512.93/18,387,954.62 = 7,817,981.48/x - Step 3: Cross multiply
13,324,512.93x = 18,387,954.62 × 7,817,981.48 - Step 4: Simplify right side
13,324,512.93x = 143,756,688,543,210.75 - Step 5: Solve for x
x = 143,756,688,543,210.75/13,324,512.93 - Step 6: Final answer
x = 10,788,888.82
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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.