Finding the Fourth Proportional to 13,495,505.76, 18,623,334.74 and 7,696,154.02
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Solution
The fourth proportional to 13,495,505.76, 18,623,334.74 and 7,696,154.02 is: 10,620,428.39
Step by Step Solution
- Step 1: Write the proportion equation
13,495,505.76 : 18,623,334.74 = 7,696,154.02 : x - Step 2: Convert to fraction form
13,495,505.76/18,623,334.74 = 7,696,154.02/x - Step 3: Cross multiply
13,495,505.76x = 18,623,334.74 × 7,696,154.02 - Step 4: Simplify right side
13,495,505.76x = 143,328,052,525,056.62 - Step 5: Solve for x
x = 143,328,052,525,056.62/13,495,505.76 - Step 6: Final answer
x = 10,620,428.39
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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.