Finding the Fourth Proportional to 7,122,165.57, 9,828,574.74 and 3,859,068.62
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Solution
The fourth proportional to 7,122,165.57, 9,828,574.74 and 3,859,068.62 is: 5,325,507.24
Step by Step Solution
- Step 1: Write the proportion equation
7,122,165.57 : 9,828,574.74 = 3,859,068.62 : x - Step 2: Convert to fraction form
7,122,165.57/9,828,574.74 = 3,859,068.62/x - Step 3: Cross multiply
7,122,165.57x = 9,828,574.74 × 3,859,068.62 - Step 4: Simplify right side
7,122,165.57x = 37,929,144,309,315.79 - Step 5: Solve for x
x = 37,929,144,309,315.79/7,122,165.57 - Step 6: Final answer
x = 5,325,507.24
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.