Finding the Fourth Proportional to 5,206,420.18, 7,806,640.15 and 2,774,579.46
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Solution
The fourth proportional to 5,206,420.18, 7,806,640.15 and 2,774,579.46 is: 4,160,275.71
Step by Step Solution
- Step 1: Write the proportion equation
5,206,420.18 : 7,806,640.15 = 2,774,579.46 : x - Step 2: Convert to fraction form
5,206,420.18/7,806,640.15 = 2,774,579.46/x - Step 3: Cross multiply
5,206,420.18x = 7,806,640.15 × 2,774,579.46 - Step 4: Simplify right side
5,206,420.18x = 21,660,143,411,801.32 - Step 5: Solve for x
x = 21,660,143,411,801.32/5,206,420.18 - Step 6: Final answer
x = 4,160,275.71
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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.