Finding the Fourth Proportional to 16,261,328.12, 22,440,664.88 and 8,919,221.02
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Solution
The fourth proportional to 16,261,328.12, 22,440,664.88 and 8,919,221.02 is: 12,308,542.60
Step by Step Solution
- Step 1: Write the proportion equation
16,261,328.12 : 22,440,664.88 = 8,919,221.02 : x - Step 2: Convert to fraction form
16,261,328.12/22,440,664.88 = 8,919,221.02/x - Step 3: Cross multiply
16,261,328.12x = 22,440,664.88 × 8,919,221.02 - Step 4: Simplify right side
16,261,328.12x = 200,153,249,900,471.75 - Step 5: Solve for x
x = 200,153,249,900,471.75/16,261,328.12 - Step 6: Final answer
x = 12,308,542.60
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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.