Finding the Fourth Proportional to 53,639,671.20, 80,459,506.80 and 19,562,128.80
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Solution
The fourth proportional to 53,639,671.20, 80,459,506.80 and 19,562,128.80 is: 29,343,193.20
Step by Step Solution
- Step 1: Write the proportion equation
53,639,671.20 : 80,459,506.80 = 19,562,128.80 : x - Step 2: Convert to fraction form
53,639,671.20/80,459,506.80 = 19,562,128.80/x - Step 3: Cross multiply
53,639,671.20x = 80,459,506.80 × 19,562,128.80 - Step 4: Simplify right side
53,639,671.20x = 1,573,959,235,206,075.75 - Step 5: Solve for x
x = 1,573,959,235,206,075.75/53,639,671.20 - Step 6: Final answer
x = 29,343,193.20
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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.