Finding the Fourth Proportional to 1,009,224,451.26, 1,513,830,324.60 and 543,105,438.75
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Solution
The fourth proportional to 1,009,224,451.26, 1,513,830,324.60 and 543,105,438.75 is: 814,654,739.69
Step by Step Solution
- Step 1: Write the proportion equation
1,009,224,451.26 : 1,513,830,324.60 = 543,105,438.75 : x - Step 2: Convert to fraction form
1,009,224,451.26/1,513,830,324.60 = 543,105,438.75/x - Step 3: Cross multiply
1,009,224,451.26x = 1,513,830,324.60 × 543,105,438.75 - Step 4: Simplify right side
1,009,224,451.26x = 822,169,482,634,937,856 - Step 5: Solve for x
x = 822,169,482,634,937,856/1,009,224,451.26 - Step 6: Final answer
x = 814,654,739.69
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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.