Finding the Fourth Proportional to 10,572,203.80, 15,858,305.70 and 9,312,491.80
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Solution
The fourth proportional to 10,572,203.80, 15,858,305.70 and 9,312,491.80 is: 13,968,737.70
Step by Step Solution
- Step 1: Write the proportion equation
10,572,203.80 : 15,858,305.70 = 9,312,491.80 : x - Step 2: Convert to fraction form
10,572,203.80/15,858,305.70 = 9,312,491.80/x - Step 3: Cross multiply
10,572,203.80x = 15,858,305.70 × 9,312,491.80 - Step 4: Simplify right side
10,572,203.80x = 147,680,341,793,143.25 - Step 5: Solve for x
x = 147,680,341,793,143.25/10,572,203.80 - Step 6: Final answer
x = 13,968,737.70
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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.