Finding the Fourth Proportional to 7,402,825.84, 10,216,700.76 and 4,347,479.92
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Solution
The fourth proportional to 7,402,825.84, 10,216,700.76 and 4,347,479.92 is: 5,999,992.75
Step by Step Solution
- Step 1: Write the proportion equation
7,402,825.84 : 10,216,700.76 = 4,347,479.92 : x - Step 2: Convert to fraction form
7,402,825.84/10,216,700.76 = 4,347,479.92/x - Step 3: Cross multiply
7,402,825.84x = 10,216,700.76 × 4,347,479.92 - Step 4: Simplify right side
7,402,825.84x = 44,416,901,402,748.73 - Step 5: Solve for x
x = 44,416,901,402,748.73/7,402,825.84 - Step 6: Final answer
x = 5,999,992.75
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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.