Finding the Fourth Proportional to 8,177,477.70, 12,266,216.55 and 7,381,215.30
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Solution
The fourth proportional to 8,177,477.70, 12,266,216.55 and 7,381,215.30 is: 11,071,822.95
Step by Step Solution
- Step 1: Write the proportion equation
8,177,477.70 : 12,266,216.55 = 7,381,215.30 : x - Step 2: Convert to fraction form
8,177,477.70/12,266,216.55 = 7,381,215.30/x - Step 3: Cross multiply
8,177,477.70x = 12,266,216.55 × 7,381,215.30 - Step 4: Simplify right side
8,177,477.70x = 90,539,585,271,973.22 - Step 5: Solve for x
x = 90,539,585,271,973.22/8,177,477.70 - Step 6: Final answer
x = 11,071,822.95
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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.