Finding the Fourth Proportional to 664,331,885.70, 996,497,828.55 and 276,025,661.70
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Solution
The fourth proportional to 664,331,885.70, 996,497,828.55 and 276,025,661.70 is: 414,038,492.55
Step by Step Solution
- Step 1: Write the proportion equation
664,331,885.70 : 996,497,828.55 = 276,025,661.70 : x - Step 2: Convert to fraction form
664,331,885.70/996,497,828.55 = 276,025,661.70/x - Step 3: Cross multiply
664,331,885.70x = 996,497,828.55 × 276,025,661.70 - Step 4: Simplify right side
664,331,885.70x = 275,058,972,508,126,880 - Step 5: Solve for x
x = 275,058,972,508,126,880/664,331,885.70 - Step 6: Final answer
x = 414,038,492.55
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1.5x scale
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.