Finding the Fourth Proportional to 6,688,299.51, 9,232,671.74 and 4,515,782.31
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Solution
The fourth proportional to 6,688,299.51, 9,232,671.74 and 4,515,782.31 is: 6,233,682.51
Step by Step Solution
- Step 1: Write the proportion equation
6,688,299.51 : 9,232,671.74 = 4,515,782.31 : x - Step 2: Convert to fraction form
6,688,299.51/9,232,671.74 = 4,515,782.31/x - Step 3: Cross multiply
6,688,299.51x = 9,232,671.74 × 4,515,782.31 - Step 4: Simplify right side
6,688,299.51x = 41,692,735,694,950 - Step 5: Solve for x
x = 41,692,735,694,950/6,688,299.51 - Step 6: Final answer
x = 6,233,682.51
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1.5x scale
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.