Finding the Fourth Proportional to 124,639,050.17, 172,008,427.79 and 75,094,970.87
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Solution
The fourth proportional to 124,639,050.17, 172,008,427.79 and 75,094,970.87 is: 103,634,999.28
Step by Step Solution
- Step 1: Write the proportion equation
124,639,050.17 : 172,008,427.79 = 75,094,970.87 : x - Step 2: Convert to fraction form
124,639,050.17/172,008,427.79 = 75,094,970.87/x - Step 3: Cross multiply
124,639,050.17x = 172,008,427.79 × 75,094,970.87 - Step 4: Simplify right side
124,639,050.17x = 12,916,967,874,284,548 - Step 5: Solve for x
x = 12,916,967,874,284,548/124,639,050.17 - Step 6: Final answer
x = 103,634,999.28
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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.