Finding the Fourth Proportional to 724,349,214.70, 1,086,523,822.05 and 264,134,430.70
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Solution
The fourth proportional to 724,349,214.70, 1,086,523,822.05 and 264,134,430.70 is: 396,201,646.05
Step by Step Solution
- Step 1: Write the proportion equation
724,349,214.70 : 1,086,523,822.05 = 264,134,430.70 : x - Step 2: Convert to fraction form
724,349,214.70/1,086,523,822.05 = 264,134,430.70/x - Step 3: Cross multiply
724,349,214.70x = 1,086,523,822.05 × 264,134,430.70 - Step 4: Simplify right side
724,349,214.70x = 286,988,351,179,164,832 - Step 5: Solve for x
x = 286,988,351,179,164,832/724,349,214.70 - Step 6: Final answer
x = 396,201,646.05
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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.