Finding the Fourth Proportional to 970,562,194.40, 1,455,843,291.60 and 740,979,682.40
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Solution
The fourth proportional to 970,562,194.40, 1,455,843,291.60 and 740,979,682.40 is: 1,111,469,523.60
Step by Step Solution
- Step 1: Write the proportion equation
970,562,194.40 : 1,455,843,291.60 = 740,979,682.40 : x - Step 2: Convert to fraction form
970,562,194.40/1,455,843,291.60 = 740,979,682.40/x - Step 3: Cross multiply
970,562,194.40x = 1,455,843,291.60 × 740,979,682.40 - Step 4: Simplify right side
970,562,194.40x = 1,078,750,299,833,938,432 - Step 5: Solve for x
x = 1,078,750,299,833,938,432/970,562,194.40 - Step 6: Final answer
x = 1,111,469,523.60
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Double scale
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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.