Finding the Fourth Proportional to 708,848,269.20, 1,063,272,403.80 and 613,296,781.20
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Solution
The fourth proportional to 708,848,269.20, 1,063,272,403.80 and 613,296,781.20 is: 919,945,171.80
Step by Step Solution
- Step 1: Write the proportion equation
708,848,269.20 : 1,063,272,403.80 = 613,296,781.20 : x - Step 2: Convert to fraction form
708,848,269.20/1,063,272,403.80 = 613,296,781.20/x - Step 3: Cross multiply
708,848,269.20x = 1,063,272,403.80 × 613,296,781.20 - Step 4: Simplify right side
708,848,269.20x = 652,101,542,789,326,720 - Step 5: Solve for x
x = 652,101,542,789,326,720/708,848,269.20 - Step 6: Final answer
x = 919,945,171.80
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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.