Finding the Fourth Proportional to 253,706,603,860.80, 350,124,318,769.68 and 145,340,644,929.12
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Solution
The fourth proportional to 253,706,603,860.80, 350,124,318,769.68 and 145,340,644,929.12 is: 200,575,363,514.28
Step by Step Solution
- Step 1: Write the proportion equation
253,706,603,860.80 : 350,124,318,769.68 = 145,340,644,929.12 : x - Step 2: Convert to fraction form
253,706,603,860.80/350,124,318,769.68 = 145,340,644,929.12/x - Step 3: Cross multiply
253,706,603,860.80x = 350,124,318,769.68 × 145,340,644,929.12 - Step 4: Simplify right side
253,706,603,860.80x = 50,887,294,295,354,084,687,872 - Step 5: Solve for x
x = 50,887,294,295,354,084,687,872/253,706,603,860.80 - Step 6: Final answer
x = 200,575,363,514.28
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.