Finding the Fourth Proportional to 7,198,432.99, 9,933,955.58 and 4,298,077.33
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Solution
The fourth proportional to 7,198,432.99, 9,933,955.58 and 4,298,077.33 is: 5,931,417.20
Step by Step Solution
- Step 1: Write the proportion equation
7,198,432.99 : 9,933,955.58 = 4,298,077.33 : x - Step 2: Convert to fraction form
7,198,432.99/9,933,955.58 = 4,298,077.33/x - Step 3: Cross multiply
7,198,432.99x = 9,933,955.58 × 4,298,077.33 - Step 4: Simplify right side
7,198,432.99x = 42,696,909,275,625 - Step 5: Solve for x
x = 42,696,909,275,625/7,198,432.99 - Step 6: Final answer
x = 5,931,417.20
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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.