Finding the Fourth Proportional to 2,013,987.36, 3,020,579.28 and 1,292,193.12
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Solution
The fourth proportional to 2,013,987.36, 3,020,579.28 and 1,292,193.12 is: 1,938,031.91
Step by Step Solution
- Step 1: Write the proportion equation
2,013,987.36 : 3,020,579.28 = 1,292,193.12 : x - Step 2: Convert to fraction form
2,013,987.36/3,020,579.28 = 1,292,193.12/x - Step 3: Cross multiply
2,013,987.36x = 3,020,579.28 × 1,292,193.12 - Step 4: Simplify right side
2,013,987.36x = 3,903,171,764,030.55 - Step 5: Solve for x
x = 3,903,171,764,030.55/2,013,987.36 - Step 6: Final answer
x = 1,938,031.91
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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.