Finding the Fourth Proportional to 7,758,689.60, 10,708,294.56 and 4,497,544.28
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Solution
The fourth proportional to 7,758,689.60, 10,708,294.56 and 4,497,544.28 is: 6,207,366.38
Step by Step Solution
- Step 1: Write the proportion equation
7,758,689.60 : 10,708,294.56 = 4,497,544.28 : x - Step 2: Convert to fraction form
7,758,689.60/10,708,294.56 = 4,497,544.28/x - Step 3: Cross multiply
7,758,689.60x = 10,708,294.56 × 4,497,544.28 - Step 4: Simplify right side
7,758,689.60x = 48,161,028,946,883.12 - Step 5: Solve for x
x = 48,161,028,946,883.12/7,758,689.60 - Step 6: Final answer
x = 6,207,366.38
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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.