Finding the Fourth Proportional to 31,374,881.97, 47,065,034.16 and 8,655,779.22
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Solution
The fourth proportional to 31,374,881.97, 47,065,034.16 and 8,655,779.22 is: 12,984,416.80
Step by Step Solution
- Step 1: Write the proportion equation
31,374,881.97 : 47,065,034.16 = 8,655,779.22 : x - Step 2: Convert to fraction form
31,374,881.97/47,065,034.16 = 8,655,779.22/x - Step 3: Cross multiply
31,374,881.97x = 47,065,034.16 × 8,655,779.22 - Step 4: Simplify right side
31,374,881.97x = 407,384,544,670,718.12 - Step 5: Solve for x
x = 407,384,544,670,718.12/31,374,881.97 - Step 6: Final answer
x = 12,984,416.80
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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.