Finding the Fourth Proportional to 223,928,906.08, 309,023,324.87 and 124,815,938.06
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Solution
The fourth proportional to 223,928,906.08, 309,023,324.87 and 124,815,938.06 is: 172,246,794.09
Step by Step Solution
- Step 1: Write the proportion equation
223,928,906.08 : 309,023,324.87 = 124,815,938.06 : x - Step 2: Convert to fraction form
223,928,906.08/309,023,324.87 = 124,815,938.06/x - Step 3: Cross multiply
223,928,906.08x = 309,023,324.87 × 124,815,938.06 - Step 4: Simplify right side
223,928,906.08x = 38,571,036,176,069,176 - Step 5: Solve for x
x = 38,571,036,176,069,176/223,928,906.08 - Step 6: Final answer
x = 172,246,794.09
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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.