Finding the Fourth Proportional to 4,979,789.50, 6,872,461.44 and 2,774,798.70
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Solution
The fourth proportional to 4,979,789.50, 6,872,461.44 and 2,774,798.70 is: 3,829,418.31
Step by Step Solution
- Step 1: Write the proportion equation
4,979,789.50 : 6,872,461.44 = 2,774,798.70 : x - Step 2: Convert to fraction form
4,979,789.50/6,872,461.44 = 2,774,798.70/x - Step 3: Cross multiply
4,979,789.50x = 6,872,461.44 × 2,774,798.70 - Step 4: Simplify right side
4,979,789.50x = 19,069,697,069,512.13 - Step 5: Solve for x
x = 19,069,697,069,512.13/4,979,789.50 - Step 6: Final answer
x = 3,829,418.31
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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.