Finding the Fourth Proportional to 5,420,947.01, 8,130,547.95 and 1,581,868.05
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Solution
The fourth proportional to 5,420,947.01, 8,130,547.95 and 1,581,868.05 is: 2,372,547.46
Step by Step Solution
- Step 1: Write the proportion equation
5,420,947.01 : 8,130,547.95 = 1,581,868.05 : x - Step 2: Convert to fraction form
5,420,947.01/8,130,547.95 = 1,581,868.05/x - Step 3: Cross multiply
5,420,947.01x = 8,130,547.95 × 1,581,868.05 - Step 4: Simplify right side
5,420,947.01x = 12,861,454,031,098.00 - Step 5: Solve for x
x = 12,861,454,031,098.00/5,420,947.01 - Step 6: Final answer
x = 2,372,547.46
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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.