Finding the Fourth Proportional to 276,521,313.81, 414,492,237.86 and 128,847,124.07
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Solution
The fourth proportional to 276,521,313.81, 414,492,237.86 and 128,847,124.07 is: 193,135,682.96
Step by Step Solution
- Step 1: Write the proportion equation
276,521,313.81 : 414,492,237.86 = 128,847,124.07 : x - Step 2: Convert to fraction form
276,521,313.81/414,492,237.86 = 128,847,124.07/x - Step 3: Cross multiply
276,521,313.81x = 414,492,237.86 × 128,847,124.07 - Step 4: Simplify right side
276,521,313.81x = 53,406,132,794,882,672 - Step 5: Solve for x
x = 53,406,132,794,882,672/276,521,313.81 - Step 6: Final answer
x = 193,135,682.96
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.