Finding the Fourth Proportional to 689,302,086, 951,106,781.94 and 410,869,517.28
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Solution
The fourth proportional to 689,302,086, 951,106,781.94 and 410,869,517.28 is: 566,922,387.61
Step by Step Solution
- Step 1: Write the proportion equation
689,302,086 : 951,106,781.94 = 410,869,517.28 : x - Step 2: Convert to fraction form
689,302,086/951,106,781.94 = 410,869,517.28/x - Step 3: Cross multiply
689,302,086x = 951,106,781.94 × 410,869,517.28 - Step 4: Simplify right side
689,302,086x = 390,780,784,377,422,016 - Step 5: Solve for x
x = 390,780,784,377,422,016/689,302,086 - Step 6: Final answer
x = 566,922,387.61
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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.