Finding the Fourth Proportional to 28,416,133.20, 42,603,204.60 and 15,651,051.60
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Solution
The fourth proportional to 28,416,133.20, 42,603,204.60 and 15,651,051.60 is: 23,465,013.65
Step by Step Solution
- Step 1: Write the proportion equation
28,416,133.20 : 42,603,204.60 = 15,651,051.60 : x - Step 2: Convert to fraction form
28,416,133.20/42,603,204.60 = 15,651,051.60/x - Step 3: Cross multiply
28,416,133.20x = 42,603,204.60 × 15,651,051.60 - Step 4: Simplify right side
28,416,133.20x = 666,784,953,519,957.38 - Step 5: Solve for x
x = 666,784,953,519,957.38/28,416,133.20 - Step 6: Final answer
x = 23,465,013.65
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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.