Finding the Fourth Proportional to 7,919,921.63, 10,929,491.84 and 4,298,249.63
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Solution
The fourth proportional to 7,919,921.63, 10,929,491.84 and 4,298,249.63 is: 5,931,584.48
Step by Step Solution
- Step 1: Write the proportion equation
7,919,921.63 : 10,929,491.84 = 4,298,249.63 : x - Step 2: Convert to fraction form
7,919,921.63/10,929,491.84 = 4,298,249.63/x - Step 3: Cross multiply
7,919,921.63x = 10,929,491.84 × 4,298,249.63 - Step 4: Simplify right side
7,919,921.63x = 46,977,684,257,368.02 - Step 5: Solve for x
x = 46,977,684,257,368.02/7,919,921.63 - Step 6: Final answer
x = 5,931,584.48
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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.