Finding the Fourth Proportional to 13,183,728.30, 19,775,592.45 and 8,696,004.30
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Solution
The fourth proportional to 13,183,728.30, 19,775,592.45 and 8,696,004.30 is: 13,044,006.45
Step by Step Solution
- Step 1: Write the proportion equation
13,183,728.30 : 19,775,592.45 = 8,696,004.30 : x - Step 2: Convert to fraction form
13,183,728.30/19,775,592.45 = 8,696,004.30/x - Step 3: Cross multiply
13,183,728.30x = 19,775,592.45 × 8,696,004.30 - Step 4: Simplify right side
13,183,728.30x = 171,968,636,980,247.53 - Step 5: Solve for x
x = 171,968,636,980,247.53/13,183,728.30 - Step 6: Final answer
x = 13,044,006.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.