Finding the Fourth Proportional to 7,345,408.80, 11,018,113.20 and 5,077,927.20
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Solution
The fourth proportional to 7,345,408.80, 11,018,113.20 and 5,077,927.20 is: 7,616,890.80
Step by Step Solution
- Step 1: Write the proportion equation
7,345,408.80 : 11,018,113.20 = 5,077,927.20 : x - Step 2: Convert to fraction form
7,345,408.80/11,018,113.20 = 5,077,927.20/x - Step 3: Cross multiply
7,345,408.80x = 11,018,113.20 × 5,077,927.20 - Step 4: Simplify right side
7,345,408.80x = 55,949,176,710,959.04 - Step 5: Solve for x
x = 55,949,176,710,959.04/7,345,408.80 - Step 6: Final answer
x = 7,616,890.80
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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.