Finding the Fourth Proportional to 100,575,541.04, 138,795,217.08 and 57,115,788.08
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Solution
The fourth proportional to 100,575,541.04, 138,795,217.08 and 57,115,788.08 is: 78,820,338.66
Step by Step Solution
- Step 1: Write the proportion equation
100,575,541.04 : 138,795,217.08 = 57,115,788.08 : x - Step 2: Convert to fraction form
100,575,541.04/138,795,217.08 = 57,115,788.08/x - Step 3: Cross multiply
100,575,541.04x = 138,795,217.08 × 57,115,788.08 - Step 4: Simplify right side
100,575,541.04x = 7,927,398,205,258,877 - Step 5: Solve for x
x = 7,927,398,205,258,877/100,575,541.04 - Step 6: Final answer
x = 78,820,338.66
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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.