Finding the Fourth Proportional to 53,640,000.20, 80,460,000.30 and 19,562,457.80
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Solution
The fourth proportional to 53,640,000.20, 80,460,000.30 and 19,562,457.80 is: 29,343,686.70
Step by Step Solution
- Step 1: Write the proportion equation
53,640,000.20 : 80,460,000.30 = 19,562,457.80 : x - Step 2: Convert to fraction form
53,640,000.20/80,460,000.30 = 19,562,457.80/x - Step 3: Cross multiply
53,640,000.20x = 80,460,000.30 × 19,562,457.80 - Step 4: Simplify right side
53,640,000.20x = 1,573,995,360,456,737.25 - Step 5: Solve for x
x = 1,573,995,360,456,737.25/53,640,000.20 - Step 6: Final answer
x = 29,343,686.70
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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.