Finding the Fourth Proportional to 311,742,492.96, 430,211,659.68 and 201,925,349.76
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Solution
The fourth proportional to 311,742,492.96, 430,211,659.68 and 201,925,349.76 is: 278,661,529.35
Step by Step Solution
- Step 1: Write the proportion equation
311,742,492.96 : 430,211,659.68 = 201,925,349.76 : x - Step 2: Convert to fraction form
311,742,492.96/430,211,659.68 = 201,925,349.76/x - Step 3: Cross multiply
311,742,492.96x = 430,211,659.68 × 201,925,349.76 - Step 4: Simplify right side
311,742,492.96x = 86,870,639,851,714,080 - Step 5: Solve for x
x = 86,870,639,851,714,080/311,742,492.96 - Step 6: Final answer
x = 278,661,529.35
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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.