Finding the Fourth Proportional to 11,500,435.14, 15,869,374.80 and 6,343,796.70
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Solution
The fourth proportional to 11,500,435.14, 15,869,374.80 and 6,343,796.70 is: 8,753,763.34
Step by Step Solution
- Step 1: Write the proportion equation
11,500,435.14 : 15,869,374.80 = 6,343,796.70 : x - Step 2: Convert to fraction form
11,500,435.14/15,869,374.80 = 6,343,796.70/x - Step 3: Cross multiply
11,500,435.14x = 15,869,374.80 × 6,343,796.70 - Step 4: Simplify right side
11,500,435.14x = 100,672,087,487,303.17 - Step 5: Solve for x
x = 100,672,087,487,303.17/11,500,435.14 - Step 6: Final answer
x = 8,753,763.34
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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.