Finding the Fourth Proportional to 5,572,216.80, 8,358,325.20 and 1,788,415.20
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Solution
The fourth proportional to 5,572,216.80, 8,358,325.20 and 1,788,415.20 is: 2,682,622.80
Step by Step Solution
- Step 1: Write the proportion equation
5,572,216.80 : 8,358,325.20 = 1,788,415.20 : x - Step 2: Convert to fraction form
5,572,216.80/8,358,325.20 = 1,788,415.20/x - Step 3: Cross multiply
5,572,216.80x = 8,358,325.20 × 1,788,415.20 - Step 4: Simplify right side
5,572,216.80x = 14,948,155,834,223.04 - Step 5: Solve for x
x = 14,948,155,834,223.04/5,572,216.80 - Step 6: Final answer
x = 2,682,622.80
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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.