Finding the Fourth Proportional to 14,395,568.40, 19,865,885.88 and 7,869,224.48
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Solution
The fourth proportional to 14,395,568.40, 19,865,885.88 and 7,869,224.48 is: 10,859,530.60
Step by Step Solution
- Step 1: Write the proportion equation
14,395,568.40 : 19,865,885.88 = 7,869,224.48 : x - Step 2: Convert to fraction form
14,395,568.40/19,865,885.88 = 7,869,224.48/x - Step 3: Cross multiply
14,395,568.40x = 19,865,885.88 × 7,869,224.48 - Step 4: Simplify right side
14,395,568.40x = 156,329,115,483,782.34 - Step 5: Solve for x
x = 156,329,115,483,782.34/14,395,568.40 - Step 6: Final answer
x = 10,859,530.60
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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.