Finding the Fourth Proportional to 13,235,828.36, 18,265,886.64 and 7,355,710.31
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Solution
The fourth proportional to 13,235,828.36, 18,265,886.64 and 7,355,710.31 is: 10,151,126.70
Step by Step Solution
- Step 1: Write the proportion equation
13,235,828.36 : 18,265,886.64 = 7,355,710.31 : x - Step 2: Convert to fraction form
13,235,828.36/18,265,886.64 = 7,355,710.31/x - Step 3: Cross multiply
13,235,828.36x = 18,265,886.64 × 7,355,710.31 - Step 4: Simplify right side
13,235,828.36x = 134,358,570,587,809.83 - Step 5: Solve for x
x = 134,358,570,587,809.83/13,235,828.36 - Step 6: Final answer
x = 10,151,126.70
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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.