Finding the Fourth Proportional to 1,207,266,074.48, 1,810,896,851.28 and 378,283,179.44
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Solution
The fourth proportional to 1,207,266,074.48, 1,810,896,851.28 and 378,283,179.44 is: 567,424,060.88
Step by Step Solution
- Step 1: Write the proportion equation
1,207,266,074.48 : 1,810,896,851.28 = 378,283,179.44 : x - Step 2: Convert to fraction form
1,207,266,074.48/1,810,896,851.28 = 378,283,179.44/x - Step 3: Cross multiply
1,207,266,074.48x = 1,810,896,851.28 × 378,283,179.44 - Step 4: Simplify right side
1,207,266,074.48x = 685,031,818,540,083,200 - Step 5: Solve for x
x = 685,031,818,540,083,200/1,207,266,074.48 - Step 6: Final answer
x = 567,424,060.88
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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.