Finding the Fourth Proportional to 1,010,394,004.90, 1,515,591,007.35 and 575,037,537.70
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Solution
The fourth proportional to 1,010,394,004.90, 1,515,591,007.35 and 575,037,537.70 is: 862,556,306.55
Step by Step Solution
- Step 1: Write the proportion equation
1,010,394,004.90 : 1,515,591,007.35 = 575,037,537.70 : x - Step 2: Convert to fraction form
1,010,394,004.90/1,515,591,007.35 = 575,037,537.70/x - Step 3: Cross multiply
1,010,394,004.90x = 1,515,591,007.35 × 575,037,537.70 - Step 4: Simplify right side
1,010,394,004.90x = 871,521,721,026,806,656 - Step 5: Solve for x
x = 871,521,721,026,806,656/1,010,394,004.90 - Step 6: Final answer
x = 862,556,306.55
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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.