Finding the Fourth Proportional to 646,801,230.80, 970,201,846.20 and 180,461,753.30
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Solution
The fourth proportional to 646,801,230.80, 970,201,846.20 and 180,461,753.30 is: 270,692,629.95
Step by Step Solution
- Step 1: Write the proportion equation
646,801,230.80 : 970,201,846.20 = 180,461,753.30 : x - Step 2: Convert to fraction form
646,801,230.80/970,201,846.20 = 180,461,753.30/x - Step 3: Cross multiply
646,801,230.80x = 970,201,846.20 × 180,461,753.30 - Step 4: Simplify right side
646,801,230.80x = 175,084,326,220,148,960 - Step 5: Solve for x
x = 175,084,326,220,148,960/646,801,230.80 - Step 6: Final answer
x = 270,692,629.95
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Similar ratio
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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.