Finding the Fourth Proportional to 73,720,387.56, 101,754,371.97 and 42,790,521.36
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Solution
The fourth proportional to 73,720,387.56, 101,754,371.97 and 42,790,521.36 is: 59,062,665.99
Step by Step Solution
- Step 1: Write the proportion equation
73,720,387.56 : 101,754,371.97 = 42,790,521.36 : x - Step 2: Convert to fraction form
73,720,387.56/101,754,371.97 = 42,790,521.36/x - Step 3: Cross multiply
73,720,387.56x = 101,754,371.97 × 42,790,521.36 - Step 4: Simplify right side
73,720,387.56x = 4,354,122,627,255,670 - Step 5: Solve for x
x = 4,354,122,627,255,670/73,720,387.56 - Step 6: Final answer
x = 59,062,665.99
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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.