Finding the Fourth Proportional to 89,542,646.80, 134,313,970.20 and 82,376,285.20
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Solution
The fourth proportional to 89,542,646.80, 134,313,970.20 and 82,376,285.20 is: 123,564,427.80
Step by Step Solution
- Step 1: Write the proportion equation
89,542,646.80 : 134,313,970.20 = 82,376,285.20 : x - Step 2: Convert to fraction form
89,542,646.80/134,313,970.20 = 82,376,285.20/x - Step 3: Cross multiply
89,542,646.80x = 134,313,970.20 × 82,376,285.20 - Step 4: Simplify right side
89,542,646.80x = 11,064,285,915,539,500 - Step 5: Solve for x
x = 11,064,285,915,539,500/89,542,646.80 - Step 6: Final answer
x = 123,564,427.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.