Finding the Fourth Proportional to 12,130,649.36, 18,202,271.48 and 4,947,453.20
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Solution
The fourth proportional to 12,130,649.36, 18,202,271.48 and 4,947,453.20 is: 7,423,748.19
Step by Step Solution
- Step 1: Write the proportion equation
12,130,649.36 : 18,202,271.48 = 4,947,453.20 : x - Step 2: Convert to fraction form
12,130,649.36/18,202,271.48 = 4,947,453.20/x - Step 3: Cross multiply
12,130,649.36x = 18,202,271.48 × 4,947,453.20 - Step 4: Simplify right side
12,130,649.36x = 90,054,886,280,994.73 - Step 5: Solve for x
x = 90,054,886,280,994.73/12,130,649.36 - Step 6: Final answer
x = 7,423,748.19
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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.