Finding the Fourth Proportional to 2,086,514,986.80, 3,129,772,480.20 and 1,928,855,031.60
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Solution
The fourth proportional to 2,086,514,986.80, 3,129,772,480.20 and 1,928,855,031.60 is: 2,893,282,547.40
Step by Step Solution
- Step 1: Write the proportion equation
2,086,514,986.80 : 3,129,772,480.20 = 1,928,855,031.60 : x - Step 2: Convert to fraction form
2,086,514,986.80/3,129,772,480.20 = 1,928,855,031.60/x - Step 3: Cross multiply
2,086,514,986.80x = 3,129,772,480.20 × 1,928,855,031.60 - Step 4: Simplify right side
2,086,514,986.80x = 6,036,877,396,196,980,736 - Step 5: Solve for x
x = 6,036,877,396,196,980,736/2,086,514,986.80 - Step 6: Final answer
x = 2,893,282,547.40
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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.