Finding the Fourth Proportional to 110,642,287.80, 165,963,431.70 and 53,246,659.80
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Solution
The fourth proportional to 110,642,287.80, 165,963,431.70 and 53,246,659.80 is: 79,869,989.70
Step by Step Solution
- Step 1: Write the proportion equation
110,642,287.80 : 165,963,431.70 = 53,246,659.80 : x - Step 2: Convert to fraction form
110,642,287.80/165,963,431.70 = 53,246,659.80/x - Step 3: Cross multiply
110,642,287.80x = 165,963,431.70 × 53,246,659.80 - Step 4: Simplify right side
110,642,287.80x = 8,836,998,386,970,435 - Step 5: Solve for x
x = 8,836,998,386,970,435/110,642,287.80 - Step 6: Final answer
x = 79,869,989.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.