Finding the Fourth Proportional to 29,674,216.56, 40,929,970.12 and 20,872,336.20
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Solution
The fourth proportional to 29,674,216.56, 40,929,970.12 and 20,872,336.20 is: 28,789,440.67
Step by Step Solution
- Step 1: Write the proportion equation
29,674,216.56 : 40,929,970.12 = 20,872,336.20 : x - Step 2: Convert to fraction form
29,674,216.56/40,929,970.12 = 20,872,336.20/x - Step 3: Cross multiply
29,674,216.56x = 40,929,970.12 × 20,872,336.20 - Step 4: Simplify right side
29,674,216.56x = 854,304,097,000,594.25 - Step 5: Solve for x
x = 854,304,097,000,594.25/29,674,216.56 - Step 6: Final answer
x = 28,789,440.67
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1.5x scale
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.