Finding the Fourth Proportional to 7,716,280.40, 10,647,488.23 and 4,230,701.95
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Solution
The fourth proportional to 7,716,280.40, 10,647,488.23 and 4,230,701.95 is: 5,837,832.07
Step by Step Solution
- Step 1: Write the proportion equation
7,716,280.40 : 10,647,488.23 = 4,230,701.95 : x - Step 2: Convert to fraction form
7,716,280.40/10,647,488.23 = 4,230,701.95/x - Step 3: Cross multiply
7,716,280.40x = 10,647,488.23 × 4,230,701.95 - Step 4: Simplify right side
7,716,280.40x = 45,046,349,217,263.05 - Step 5: Solve for x
x = 45,046,349,217,263.05/7,716,280.40 - Step 6: Final answer
x = 5,837,832.07
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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.