Finding the Fourth Proportional to 372,130,231.29, 513,569,742.66 and 213,375,126.42
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Solution
The fourth proportional to 372,130,231.29, 513,569,742.66 and 213,375,126.42 is: 294,474,889.58
Step by Step Solution
- Step 1: Write the proportion equation
372,130,231.29 : 513,569,742.66 = 213,375,126.42 : x - Step 2: Convert to fraction form
372,130,231.29/513,569,742.66 = 213,375,126.42/x - Step 3: Cross multiply
372,130,231.29x = 513,569,742.66 × 213,375,126.42 - Step 4: Simplify right side
372,130,231.29x = 109,583,008,765,564,368 - Step 5: Solve for x
x = 109,583,008,765,564,368/372,130,231.29 - Step 6: Final answer
x = 294,474,889.58
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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.