Finding the Fourth Proportional to 5,118,610.78, 7,679,350.95 and 2,240,228.44
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Solution
The fourth proportional to 5,118,610.78, 7,679,350.95 and 2,240,228.44 is: 3,360,970.61
Step by Step Solution
- Step 1: Write the proportion equation
5,118,610.78 : 7,679,350.95 = 2,240,228.44 : x - Step 2: Convert to fraction form
5,118,610.78/7,679,350.95 = 2,240,228.44/x - Step 3: Cross multiply
5,118,610.78x = 7,679,350.95 × 2,240,228.44 - Step 4: Simplify right side
5,118,610.78x = 17,203,500,398,931.02 - Step 5: Solve for x
x = 17,203,500,398,931.02/5,118,610.78 - Step 6: Final answer
x = 3,360,970.61
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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.