Finding the Fourth Proportional to 11,275,280.81, 15,559,928.31 and 6,118,640.99
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Solution
The fourth proportional to 11,275,280.81, 15,559,928.31 and 6,118,640.99 is: 8,443,746.70
Step by Step Solution
- Step 1: Write the proportion equation
11,275,280.81 : 15,559,928.31 = 6,118,640.99 : x - Step 2: Convert to fraction form
11,275,280.81/15,559,928.31 = 6,118,640.99/x - Step 3: Cross multiply
11,275,280.81x = 15,559,928.31 × 6,118,640.99 - Step 4: Simplify right side
11,275,280.81x = 95,205,615,128,434.22 - Step 5: Solve for x
x = 95,205,615,128,434.22/11,275,280.81 - Step 6: Final answer
x = 8,443,746.70
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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.