Finding the Fourth Proportional to 10,328,830.12, 14,257,622.76 and 8,872,681.78
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Solution
The fourth proportional to 10,328,830.12, 14,257,622.76 and 8,872,681.78 is: 12,247,597.09
Step by Step Solution
- Step 1: Write the proportion equation
10,328,830.12 : 14,257,622.76 = 8,872,681.78 : x - Step 2: Convert to fraction form
10,328,830.12/14,257,622.76 = 8,872,681.78/x - Step 3: Cross multiply
10,328,830.12x = 14,257,622.76 × 8,872,681.78 - Step 4: Simplify right side
10,328,830.12x = 126,503,349,688,765.30 - Step 5: Solve for x
x = 126,503,349,688,765.30/10,328,830.12 - Step 6: Final answer
x = 12,247,597.09
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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.