Finding the Fourth Proportional to 7,716,784.32, 10,648,395.09 and 4,454,649.99
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Solution
The fourth proportional to 7,716,784.32, 10,648,395.09 and 4,454,649.99 is: 6,146,974.07
Step by Step Solution
- Step 1: Write the proportion equation
7,716,784.32 : 10,648,395.09 = 4,454,649.99 : x - Step 2: Convert to fraction form
7,716,784.32/10,648,395.09 = 4,454,649.99/x - Step 3: Cross multiply
7,716,784.32x = 10,648,395.09 × 4,454,649.99 - Step 4: Simplify right side
7,716,784.32x = 47,434,873,081,184.55 - Step 5: Solve for x
x = 47,434,873,081,184.55/7,716,784.32 - Step 6: Final answer
x = 6,146,974.07
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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.