Finding the Fourth Proportional to 1,716,863,278.80, 2,575,294,918.20 and 424,398,766.80
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Solution
The fourth proportional to 1,716,863,278.80, 2,575,294,918.20 and 424,398,766.80 is: 636,598,150.20
Step by Step Solution
- Step 1: Write the proportion equation
1,716,863,278.80 : 2,575,294,918.20 = 424,398,766.80 : x - Step 2: Convert to fraction form
1,716,863,278.80/2,575,294,918.20 = 424,398,766.80/x - Step 3: Cross multiply
1,716,863,278.80x = 2,575,294,918.20 × 424,398,766.80 - Step 4: Simplify right side
1,716,863,278.80x = 1,092,951,987,430,386,816 - Step 5: Solve for x
x = 1,092,951,987,430,386,816/1,716,863,278.80 - Step 6: Final answer
x = 636,598,150.20
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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.