Finding the Fourth Proportional to 3,896,312.16, 5,376,930.64 and 2,177,461.36
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Solution
The fourth proportional to 3,896,312.16, 5,376,930.64 and 2,177,461.36 is: 3,004,907.78
Step by Step Solution
- Step 1: Write the proportion equation
3,896,312.16 : 5,376,930.64 = 2,177,461.36 : x - Step 2: Convert to fraction form
3,896,312.16/5,376,930.64 = 2,177,461.36/x - Step 3: Cross multiply
3,896,312.16x = 5,376,930.64 × 2,177,461.36 - Step 4: Simplify right side
3,896,312.16x = 11,708,058,704,000.07 - Step 5: Solve for x
x = 11,708,058,704,000.07/3,896,312.16 - Step 6: Final answer
x = 3,004,907.78
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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.