Finding the Fourth Proportional to 207,289,132.55, 310,899,901.73 and 69,115,884.19
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Solution
The fourth proportional to 207,289,132.55, 310,899,901.73 and 69,115,884.19 is: 103,662,557.41
Step by Step Solution
- Step 1: Write the proportion equation
207,289,132.55 : 310,899,901.73 = 69,115,884.19 : x - Step 2: Convert to fraction form
207,289,132.55/310,899,901.73 = 69,115,884.19/x - Step 3: Cross multiply
207,289,132.55x = 310,899,901.73 × 69,115,884.19 - Step 4: Simplify right side
207,289,132.55x = 21,488,121,602,479,832 - Step 5: Solve for x
x = 21,488,121,602,479,832/207,289,132.55 - Step 6: Final answer
x = 103,662,557.41
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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.