Finding the Fourth Proportional to 293,422,843.20, 440,134,264.80 and 157,373,947.20
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Solution
The fourth proportional to 293,422,843.20, 440,134,264.80 and 157,373,947.20 is: 236,060,920.80
Step by Step Solution
- Step 1: Write the proportion equation
293,422,843.20 : 440,134,264.80 = 157,373,947.20 : x - Step 2: Convert to fraction form
293,422,843.20/440,134,264.80 = 157,373,947.20/x - Step 3: Cross multiply
293,422,843.20x = 440,134,264.80 × 157,373,947.20 - Step 4: Simplify right side
293,422,843.20x = 69,265,666,549,546,016 - Step 5: Solve for x
x = 69,265,666,549,546,016/293,422,843.20 - Step 6: Final answer
x = 236,060,920.80
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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.