Finding the Fourth Proportional to 711,982,018.39, 1,068,279,934.06 and 384,392,488.99
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Solution
The fourth proportional to 711,982,018.39, 1,068,279,934.06 and 384,392,488.99 is: 576,754,429.44
Step by Step Solution
- Step 1: Write the proportion equation
711,982,018.39 : 1,068,279,934.06 = 384,392,488.99 : x - Step 2: Convert to fraction form
711,982,018.39/1,068,279,934.06 = 384,392,488.99/x - Step 3: Cross multiply
711,982,018.39x = 1,068,279,934.06 × 384,392,488.99 - Step 4: Simplify right side
711,982,018.39x = 410,638,782,791,396,480 - Step 5: Solve for x
x = 410,638,782,791,396,480/711,982,018.39 - Step 6: Final answer
x = 576,754,429.44
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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.