Finding the Fourth Proportional to 385,244,928,138.30, 577,867,392,207.45 and 251,352,407,139.90
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Solution
The fourth proportional to 385,244,928,138.30, 577,867,392,207.45 and 251,352,407,139.90 is: 377,028,610,709.85
Step by Step Solution
- Step 1: Write the proportion equation
385,244,928,138.30 : 577,867,392,207.45 = 251,352,407,139.90 : x - Step 2: Convert to fraction form
385,244,928,138.30/577,867,392,207.45 = 251,352,407,139.90/x - Step 3: Cross multiply
385,244,928,138.30x = 577,867,392,207.45 × 251,352,407,139.90 - Step 4: Simplify right side
385,244,928,138.30x = 145,248,360,038,999,231,823,872 - Step 5: Solve for x
x = 145,248,360,038,999,231,823,872/385,244,928,138.30 - Step 6: Final answer
x = 377,028,610,709.85
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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.