Finding the Fourth Proportional to 927,139,468.32, 1,279,448,273.04 and 509,450,539.68
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Solution
The fourth proportional to 927,139,468.32, 1,279,448,273.04 and 509,450,539.68 is: 703,039,440.63
Step by Step Solution
- Step 1: Write the proportion equation
927,139,468.32 : 1,279,448,273.04 = 509,450,539.68 : x - Step 2: Convert to fraction form
927,139,468.32/1,279,448,273.04 = 509,450,539.68/x - Step 3: Cross multiply
927,139,468.32x = 1,279,448,273.04 × 509,450,539.68 - Step 4: Simplify right side
927,139,468.32x = 651,815,613,192,871,936 - Step 5: Solve for x
x = 651,815,613,192,871,936/927,139,468.32 - Step 6: Final answer
x = 703,039,440.63
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.