Finding the Fourth Proportional to 14,258,487.40, 19,676,717.85 and 7,732,115.17
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Solution
The fourth proportional to 14,258,487.40, 19,676,717.85 and 7,732,115.17 is: 10,670,321.78
Step by Step Solution
- Step 1: Write the proportion equation
14,258,487.40 : 19,676,717.85 = 7,732,115.17 : x - Step 2: Convert to fraction form
14,258,487.40/19,676,717.85 = 7,732,115.17/x - Step 3: Cross multiply
14,258,487.40x = 19,676,717.85 × 7,732,115.17 - Step 4: Simplify right side
14,258,487.40x = 152,142,648,583,794.78 - Step 5: Solve for x
x = 152,142,648,583,794.78/14,258,487.40 - Step 6: Final answer
x = 10,670,321.78
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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.