Finding the Fourth Proportional to 245,366,954.36, 338,600,947.57 and 135,358,638.20
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Solution
The fourth proportional to 245,366,954.36, 338,600,947.57 and 135,358,638.20 is: 186,791,914.49
Step by Step Solution
- Step 1: Write the proportion equation
245,366,954.36 : 338,600,947.57 = 135,358,638.20 : x - Step 2: Convert to fraction form
245,366,954.36/338,600,947.57 = 135,358,638.20/x - Step 3: Cross multiply
245,366,954.36x = 338,600,947.57 × 135,358,638.20 - Step 4: Simplify right side
245,366,954.36x = 45,832,563,156,304,792 - Step 5: Solve for x
x = 45,832,563,156,304,792/245,366,954.36 - Step 6: Final answer
x = 186,791,914.49
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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.