Finding the Fourth Proportional to 280,475,124.18, 420,733,833.36 and 83,722,995.18
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Solution
The fourth proportional to 280,475,124.18, 420,733,833.36 and 83,722,995.18 is: 125,590,805.26
Step by Step Solution
- Step 1: Write the proportion equation
280,475,124.18 : 420,733,833.36 = 83,722,995.18 : x - Step 2: Convert to fraction form
280,475,124.18/420,733,833.36 = 83,722,995.18/x - Step 3: Cross multiply
280,475,124.18x = 420,733,833.36 × 83,722,995.18 - Step 4: Simplify right side
280,475,124.18x = 35,225,096,702,462,208 - Step 5: Solve for x
x = 35,225,096,702,462,208/280,475,124.18 - Step 6: Final answer
x = 125,590,805.26
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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.