Finding the Fourth Proportional to 7,621,698.29, 10,517,671.20 and 4,313,921.54
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Solution
The fourth proportional to 7,621,698.29, 10,517,671.20 and 4,313,921.54 is: 5,953,057.52
Step by Step Solution
- Step 1: Write the proportion equation
7,621,698.29 : 10,517,671.20 = 4,313,921.54 : x - Step 2: Convert to fraction form
7,621,698.29/10,517,671.20 = 4,313,921.54/x - Step 3: Cross multiply
7,621,698.29x = 10,517,671.20 × 4,313,921.54 - Step 4: Simplify right side
7,621,698.29x = 45,372,408,314,023.46 - Step 5: Solve for x
x = 45,372,408,314,023.46/7,621,698.29 - Step 6: Final answer
x = 5,953,057.52
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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.