Finding the Fourth Proportional to 4,138,705.32, 5,711,372.05 and 2,303,132.19
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Solution
The fourth proportional to 4,138,705.32, 5,711,372.05 and 2,303,132.19 is: 3,178,299.44
Step by Step Solution
- Step 1: Write the proportion equation
4,138,705.32 : 5,711,372.05 = 2,303,132.19 : x - Step 2: Convert to fraction form
4,138,705.32/5,711,372.05 = 2,303,132.19/x - Step 3: Cross multiply
4,138,705.32x = 5,711,372.05 × 2,303,132.19 - Step 4: Simplify right side
4,138,705.32x = 13,154,044,817,421.29 - Step 5: Solve for x
x = 13,154,044,817,421.29/4,138,705.32 - Step 6: Final answer
x = 3,178,299.44
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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.