Finding the Fourth Proportional to 3,201,395.65, 4,417,877.84 and 1,911,986.93
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Solution
The fourth proportional to 3,201,395.65, 4,417,877.84 and 1,911,986.93 is: 2,638,513.20
Step by Step Solution
- Step 1: Write the proportion equation
3,201,395.65 : 4,417,877.84 = 1,911,986.93 : x - Step 2: Convert to fraction form
3,201,395.65/4,417,877.84 = 1,911,986.93/x - Step 3: Cross multiply
3,201,395.65x = 4,417,877.84 × 1,911,986.93 - Step 4: Simplify right side
3,201,395.65x = 8,446,924,689,901.39 - Step 5: Solve for x
x = 8,446,924,689,901.39/3,201,395.65 - Step 6: Final answer
x = 2,638,513.20
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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.