Finding the Fourth Proportional to 43,624,871.40, 65,437,307.10 and 13,332,685.80
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Solution
The fourth proportional to 43,624,871.40, 65,437,307.10 and 13,332,685.80 is: 19,999,028.70
Step by Step Solution
- Step 1: Write the proportion equation
43,624,871.40 : 65,437,307.10 = 13,332,685.80 : x - Step 2: Convert to fraction form
43,624,871.40/65,437,307.10 = 13,332,685.80/x - Step 3: Cross multiply
43,624,871.40x = 65,437,307.10 × 13,332,685.80 - Step 4: Simplify right side
43,624,871.40x = 872,455,055,162,409.25 - Step 5: Solve for x
x = 872,455,055,162,409.25/43,624,871.40 - Step 6: Final answer
x = 19,999,028.70
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1.5x scale
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.