Finding the Fourth Proportional to 1,698,651,199.80, 2,547,976,799.70 and 471,831,679.80
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Solution
The fourth proportional to 1,698,651,199.80, 2,547,976,799.70 and 471,831,679.80 is: 707,747,519.70
Step by Step Solution
- Step 1: Write the proportion equation
1,698,651,199.80 : 2,547,976,799.70 = 471,831,679.80 : x - Step 2: Convert to fraction form
1,698,651,199.80/2,547,976,799.70 = 471,831,679.80/x - Step 3: Cross multiply
1,698,651,199.80x = 2,547,976,799.70 × 471,831,679.80 - Step 4: Simplify right side
1,698,651,199.80x = 1,202,216,173,493,879,040 - Step 5: Solve for x
x = 1,202,216,173,493,879,040/1,698,651,199.80 - Step 6: Final answer
x = 707,747,519.70
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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.