Finding the Fourth Proportional to 1,115,473,349.20, 1,673,210,023.80 and 993,029,342.80
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Solution
The fourth proportional to 1,115,473,349.20, 1,673,210,023.80 and 993,029,342.80 is: 1,489,544,014.20
Step by Step Solution
- Step 1: Write the proportion equation
1,115,473,349.20 : 1,673,210,023.80 = 993,029,342.80 : x - Step 2: Convert to fraction form
1,115,473,349.20/1,673,210,023.80 = 993,029,342.80/x - Step 3: Cross multiply
1,115,473,349.20x = 1,673,210,023.80 × 993,029,342.80 - Step 4: Simplify right side
1,115,473,349.20x = 1,661,546,650,300,486,144 - Step 5: Solve for x
x = 1,661,546,650,300,486,144/1,115,473,349.20 - Step 6: Final answer
x = 1,489,544,014.20
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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.