Finding the Fourth Proportional to 28,065,774.75, 42,098,663.75 and 6,790,638.75
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Solution
The fourth proportional to 28,065,774.75, 42,098,663.75 and 6,790,638.75 is: 10,185,958.52
Step by Step Solution
- Step 1: Write the proportion equation
28,065,774.75 : 42,098,663.75 = 6,790,638.75 : x - Step 2: Convert to fraction form
28,065,774.75/42,098,663.75 = 6,790,638.75/x - Step 3: Cross multiply
28,065,774.75x = 42,098,663.75 × 6,790,638.75 - Step 4: Simplify right side
28,065,774.75x = 285,876,817,350,017.12 - Step 5: Solve for x
x = 285,876,817,350,017.12/28,065,774.75 - Step 6: Final answer
x = 10,185,958.52
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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.