Finding the Fourth Proportional to 2,854,142.99, 4,272,816.40 and 1,905,159.95
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Solution
The fourth proportional to 2,854,142.99, 4,272,816.40 and 1,905,159.95 is: 2,852,134.15
Step by Step Solution
- Step 1: Write the proportion equation
2,854,142.99 : 4,272,816.40 = 1,905,159.95 : x - Step 2: Convert to fraction form
2,854,142.99/4,272,816.40 = 1,905,159.95/x - Step 3: Cross multiply
2,854,142.99x = 4,272,816.40 × 1,905,159.95 - Step 4: Simplify right side
2,854,142.99x = 8,140,398,678,983.18 - Step 5: Solve for x
x = 8,140,398,678,983.18/2,854,142.99 - Step 6: Final answer
x = 2,852,134.15
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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.