Finding the Fourth Proportional to 10,512,037.20, 15,768,055.80 and 4,528,405.20
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Solution
The fourth proportional to 10,512,037.20, 15,768,055.80 and 4,528,405.20 is: 6,792,607.80
Step by Step Solution
- Step 1: Write the proportion equation
10,512,037.20 : 15,768,055.80 = 4,528,405.20 : x - Step 2: Convert to fraction form
10,512,037.20/15,768,055.80 = 4,528,405.20/x - Step 3: Cross multiply
10,512,037.20x = 15,768,055.80 × 4,528,405.20 - Step 4: Simplify right side
10,512,037.20x = 71,404,145,878,610.17 - Step 5: Solve for x
x = 71,404,145,878,610.17/10,512,037.20 - Step 6: Final answer
x = 6,792,607.80
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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.