Finding the Fourth Proportional to 554,955,512.40, 765,885,636.36 and 307,514,483.28
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Solution
The fourth proportional to 554,955,512.40, 765,885,636.36 and 307,514,483.28 is: 424,396,046.99
Step by Step Solution
- Step 1: Write the proportion equation
554,955,512.40 : 765,885,636.36 = 307,514,483.28 : x - Step 2: Convert to fraction form
554,955,512.40/765,885,636.36 = 307,514,483.28/x - Step 3: Cross multiply
554,955,512.40x = 765,885,636.36 × 307,514,483.28 - Step 4: Simplify right side
554,955,512.40x = 235,520,925,716,819,360 - Step 5: Solve for x
x = 235,520,925,716,819,360/554,955,512.40 - Step 6: Final answer
x = 424,396,046.99
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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.