Finding the Fourth Proportional to 840,275,984.20, 1,259,563,670.70 and 495,051,910.60
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Solution
The fourth proportional to 840,275,984.20, 1,259,563,670.70 and 495,051,910.60 is: 742,076,905.00
Step by Step Solution
- Step 1: Write the proportion equation
840,275,984.20 : 1,259,563,670.70 = 495,051,910.60 : x - Step 2: Convert to fraction form
840,275,984.20/1,259,563,670.70 = 495,051,910.60/x - Step 3: Cross multiply
840,275,984.20x = 1,259,563,670.70 × 495,051,910.60 - Step 4: Simplify right side
840,275,984.20x = 623,549,401,702,384,256 - Step 5: Solve for x
x = 623,549,401,702,384,256/840,275,984.20 - Step 6: Final answer
x = 742,076,905.00
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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.