Finding the Fourth Proportional to 19,648,214.40, 29,440,828.80 and 12,446,860.80
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Solution
The fourth proportional to 19,648,214.40, 29,440,828.80 and 12,446,860.80 is: 18,650,340.96
Step by Step Solution
- Step 1: Write the proportion equation
19,648,214.40 : 29,440,828.80 = 12,446,860.80 : x - Step 2: Convert to fraction form
19,648,214.40/29,440,828.80 = 12,446,860.80/x - Step 3: Cross multiply
19,648,214.40x = 29,440,828.80 × 12,446,860.80 - Step 4: Simplify right side
19,648,214.40x = 366,445,897,910,231.06 - Step 5: Solve for x
x = 366,445,897,910,231.06/19,648,214.40 - Step 6: Final answer
x = 18,650,340.96
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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.