Finding the Fourth Proportional to 7,639,962, 10,544,645.25 and 4,378,962.42
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Solution
The fourth proportional to 7,639,962, 10,544,645.25 and 4,378,962.42 is: 6,043,826.56
Step by Step Solution
- Step 1: Write the proportion equation
7,639,962 : 10,544,645.25 = 4,378,962.42 : x - Step 2: Convert to fraction form
7,639,962/10,544,645.25 = 4,378,962.42/x - Step 3: Cross multiply
7,639,962x = 10,544,645.25 × 4,378,962.42 - Step 4: Simplify right side
7,639,962x = 46,174,605,281,981.51 - Step 5: Solve for x
x = 46,174,605,281,981.51/7,639,962 - Step 6: Final answer
x = 6,043,826.56
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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.