Finding the Fourth Proportional to 7,190,860.74, 9,923,328.84 and 3,927,677.52
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Solution
The fourth proportional to 7,190,860.74, 9,923,328.84 and 3,927,677.52 is: 5,420,162.76
Step by Step Solution
- Step 1: Write the proportion equation
7,190,860.74 : 9,923,328.84 = 3,927,677.52 : x - Step 2: Convert to fraction form
7,190,860.74/9,923,328.84 = 3,927,677.52/x - Step 3: Cross multiply
7,190,860.74x = 9,923,328.84 × 3,927,677.52 - Step 4: Simplify right side
7,190,860.74x = 38,975,635,558,819.03 - Step 5: Solve for x
x = 38,975,635,558,819.03/7,190,860.74 - Step 6: Final answer
x = 5,420,162.76
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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.