Finding the Fourth Proportional to 7,983,490.10, 11,017,220.69 and 4,312,406.62
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Solution
The fourth proportional to 7,983,490.10, 11,017,220.69 and 4,312,406.62 is: 5,951,123.48
Step by Step Solution
- Step 1: Write the proportion equation
7,983,490.10 : 11,017,220.69 = 4,312,406.62 : x - Step 2: Convert to fraction form
7,983,490.10/11,017,220.69 = 4,312,406.62/x - Step 3: Cross multiply
7,983,490.10x = 11,017,220.69 × 4,312,406.62 - Step 4: Simplify right side
7,983,490.10x = 47,510,735,360,908.84 - Step 5: Solve for x
x = 47,510,735,360,908.84/7,983,490.10 - Step 6: Final answer
x = 5,951,123.48
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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.