Finding the Fourth Proportional to 10,402,051.20, 15,603,125.40 and 3,670,465.20
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Solution
The fourth proportional to 10,402,051.20, 15,603,125.40 and 3,670,465.20 is: 5,505,714.95
Step by Step Solution
- Step 1: Write the proportion equation
10,402,051.20 : 15,603,125.40 = 3,670,465.20 : x - Step 2: Convert to fraction form
10,402,051.20/15,603,125.40 = 3,670,465.20/x - Step 3: Cross multiply
10,402,051.20x = 15,603,125.40 × 3,670,465.20 - Step 4: Simplify right side
10,402,051.20x = 57,270,728,791,936.09 - Step 5: Solve for x
x = 57,270,728,791,936.09/10,402,051.20 - Step 6: Final answer
x = 5,505,714.95
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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.