Finding the Fourth Proportional to 804,821,339.60, 1,207,232,009.40 and 437,489,320.40
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Solution
The fourth proportional to 804,821,339.60, 1,207,232,009.40 and 437,489,320.40 is: 656,233,980.60
Step by Step Solution
- Step 1: Write the proportion equation
804,821,339.60 : 1,207,232,009.40 = 437,489,320.40 : x - Step 2: Convert to fraction form
804,821,339.60/1,207,232,009.40 = 437,489,320.40/x - Step 3: Cross multiply
804,821,339.60x = 1,207,232,009.40 × 437,489,320.40 - Step 4: Simplify right side
804,821,339.60x = 528,151,111,357,532,416 - Step 5: Solve for x
x = 528,151,111,357,532,416/804,821,339.60 - Step 6: Final answer
x = 656,233,980.60
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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.