Finding the Fourth Proportional to 199,340,110.20, 278,395,909.80 and 199,340,110.20
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Solution
The fourth proportional to 199,340,110.20, 278,395,909.80 and 199,340,110.20 is: 278,395,909.80
Step by Step Solution
- Step 1: Write the proportion equation
199,340,110.20 : 278,395,909.80 = 199,340,110.20 : x - Step 2: Convert to fraction form
199,340,110.20/278,395,909.80 = 199,340,110.20/x - Step 3: Cross multiply
199,340,110.20x = 278,395,909.80 × 199,340,110.20 - Step 4: Simplify right side
199,340,110.20x = 55,495,471,338,761,256 - Step 5: Solve for x
x = 55,495,471,338,761,256/199,340,110.20 - Step 6: Final answer
x = 278,395,909.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.