Finding the Fourth Proportional to 2,948,955.81, 4,067,462.70 and 1,968,400.45
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Solution
The fourth proportional to 2,948,955.81, 4,067,462.70 and 1,968,400.45 is: 2,714,993.35
Step by Step Solution
- Step 1: Write the proportion equation
2,948,955.81 : 4,067,462.70 = 1,968,400.45 : x - Step 2: Convert to fraction form
2,948,955.81/4,067,462.70 = 1,968,400.45/x - Step 3: Cross multiply
2,948,955.81x = 4,067,462.70 × 1,968,400.45 - Step 4: Simplify right side
2,948,955.81x = 8,006,395,409,038.22 - Step 5: Solve for x
x = 8,006,395,409,038.22/2,948,955.81 - Step 6: Final answer
x = 2,714,993.35
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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.