Finding the Fourth Proportional to 827,514,911.87, 1,143,060,651.58 and 613,367,680.74
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Solution
The fourth proportional to 827,514,911.87, 1,143,060,651.58 and 613,367,680.74 is: 847,255,379.63
Step by Step Solution
- Step 1: Write the proportion equation
827,514,911.87 : 1,143,060,651.58 = 613,367,680.74 : x - Step 2: Convert to fraction form
827,514,911.87/1,143,060,651.58 = 613,367,680.74/x - Step 3: Cross multiply
827,514,911.87x = 1,143,060,651.58 × 613,367,680.74 - Step 4: Simplify right side
827,514,911.87x = 701,116,460,808,126,080 - Step 5: Solve for x
x = 701,116,460,808,126,080/827,514,911.87 - Step 6: Final answer
x = 847,255,379.63
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Double scale
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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.