Finding the Fourth Proportional to 245,366,954.29, 338,600,947.09 and 135,358,638.13
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Solution
The fourth proportional to 245,366,954.29, 338,600,947.09 and 135,358,638.13 is: 186,791,914.17
Step by Step Solution
- Step 1: Write the proportion equation
245,366,954.29 : 338,600,947.09 = 135,358,638.13 : x - Step 2: Convert to fraction form
245,366,954.29/338,600,947.09 = 135,358,638.13/x - Step 3: Cross multiply
245,366,954.29x = 338,600,947.09 × 135,358,638.13 - Step 4: Simplify right side
245,366,954.29x = 45,832,563,065,260,784 - Step 5: Solve for x
x = 45,832,563,065,260,784/245,366,954.29 - Step 6: Final answer
x = 186,791,914.17
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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.