Finding the Fourth Proportional to 13,029,350.88, 17,980,525.40 and 7,228,132.76
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Solution
The fourth proportional to 13,029,350.88, 17,980,525.40 and 7,228,132.76 is: 9,974,834.96
Step by Step Solution
- Step 1: Write the proportion equation
13,029,350.88 : 17,980,525.40 = 7,228,132.76 : x - Step 2: Convert to fraction form
13,029,350.88/17,980,525.40 = 7,228,132.76/x - Step 3: Cross multiply
13,029,350.88x = 17,980,525.40 × 7,228,132.76 - Step 4: Simplify right side
13,029,350.88x = 129,965,624,685,752.09 - Step 5: Solve for x
x = 129,965,624,685,752.09/13,029,350.88 - Step 6: Final answer
x = 9,974,834.96
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1.5x scale
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.