Finding the Fourth Proportional to 280,028,715.68, 386,439,697.68 and 154,580,984.48
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Solution
The fourth proportional to 280,028,715.68, 386,439,697.68 and 154,580,984.48 is: 213,321,797.25
Step by Step Solution
- Step 1: Write the proportion equation
280,028,715.68 : 386,439,697.68 = 154,580,984.48 : x - Step 2: Convert to fraction form
280,028,715.68/386,439,697.68 = 154,580,984.48/x - Step 3: Cross multiply
280,028,715.68x = 386,439,697.68 × 154,580,984.48 - Step 4: Simplify right side
280,028,715.68x = 59,736,228,909,527,968 - Step 5: Solve for x
x = 59,736,228,909,527,968/280,028,715.68 - Step 6: Final answer
x = 213,321,797.25
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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.