Finding the Fourth Proportional to 11,187,620.20, 16,781,430.30 and 5,122,340.20
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Solution
The fourth proportional to 11,187,620.20, 16,781,430.30 and 5,122,340.20 is: 7,683,510.30
Step by Step Solution
- Step 1: Write the proportion equation
11,187,620.20 : 16,781,430.30 = 5,122,340.20 : x - Step 2: Convert to fraction form
11,187,620.20/16,781,430.30 = 5,122,340.20/x - Step 3: Cross multiply
11,187,620.20x = 16,781,430.30 × 5,122,340.20 - Step 4: Simplify right side
11,187,620.20x = 85,960,195,039,188.06 - Step 5: Solve for x
x = 85,960,195,039,188.06/11,187,620.20 - Step 6: Final answer
x = 7,683,510.30
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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.