Finding the Fourth Proportional to 13,370,454.08, 18,451,649.76 and 7,569,130.40
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Solution
The fourth proportional to 13,370,454.08, 18,451,649.76 and 7,569,130.40 is: 10,445,639.49
Step by Step Solution
- Step 1: Write the proportion equation
13,370,454.08 : 18,451,649.76 = 7,569,130.40 : x - Step 2: Convert to fraction form
13,370,454.08/18,451,649.76 = 7,569,130.40/x - Step 3: Cross multiply
13,370,454.08x = 18,451,649.76 × 7,569,130.40 - Step 4: Simplify right side
13,370,454.08x = 139,662,943,128,568.72 - Step 5: Solve for x
x = 139,662,943,128,568.72/13,370,454.08 - Step 6: Final answer
x = 10,445,639.49
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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.