Finding the Fourth Proportional to 189,301,915.72, 261,248,590.74 and 106,765,585.48
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Solution
The fourth proportional to 189,301,915.72, 261,248,590.74 and 106,765,585.48 is: 147,343,246.05
Step by Step Solution
- Step 1: Write the proportion equation
189,301,915.72 : 261,248,590.74 = 106,765,585.48 : x - Step 2: Convert to fraction form
189,301,915.72/261,248,590.74 = 106,765,585.48/x - Step 3: Cross multiply
189,301,915.72x = 261,248,590.74 × 106,765,585.48 - Step 4: Simplify right side
189,301,915.72x = 27,892,358,746,181,008 - Step 5: Solve for x
x = 27,892,358,746,181,008/189,301,915.72 - Step 6: Final answer
x = 147,343,246.05
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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.