Finding the Fourth Proportional to 1,246,306,542.40, 1,867,948,159.20 and 555,480,481.60
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Solution
The fourth proportional to 1,246,306,542.40, 1,867,948,159.20 and 555,480,481.60 is: 832,546,976.03
Step by Step Solution
- Step 1: Write the proportion equation
1,246,306,542.40 : 1,867,948,159.20 = 555,480,481.60 : x - Step 2: Convert to fraction form
1,246,306,542.40/1,867,948,159.20 = 555,480,481.60/x - Step 3: Cross multiply
1,246,306,542.40x = 1,867,948,159.20 × 555,480,481.60 - Step 4: Simplify right side
1,246,306,542.40x = 1,037,608,743,076,249,600 - Step 5: Solve for x
x = 1,037,608,743,076,249,600/1,246,306,542.40 - Step 6: Final answer
x = 832,546,976.03
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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.