Finding the Fourth Proportional to 32,113,810.68, 44,306,272.05 and 20,518,161.72
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Solution
The fourth proportional to 32,113,810.68, 44,306,272.05 and 20,518,161.72 is: 28,308,171.34
Step by Step Solution
- Step 1: Write the proportion equation
32,113,810.68 : 44,306,272.05 = 20,518,161.72 : x - Step 2: Convert to fraction form
32,113,810.68/44,306,272.05 = 20,518,161.72/x - Step 3: Cross multiply
32,113,810.68x = 44,306,272.05 × 20,518,161.72 - Step 4: Simplify right side
32,113,810.68x = 909,083,255,132,215.75 - Step 5: Solve for x
x = 909,083,255,132,215.75/32,113,810.68 - Step 6: Final answer
x = 28,308,171.34
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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.