Finding the Fourth Proportional to 77,311,758.24, 106,690,294.80 and 42,505,041.12
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Solution
The fourth proportional to 77,311,758.24, 106,690,294.80 and 42,505,041.12 is: 58,656,994.37
Step by Step Solution
- Step 1: Write the proportion equation
77,311,758.24 : 106,690,294.80 = 42,505,041.12 : x - Step 2: Convert to fraction form
77,311,758.24/106,690,294.80 = 42,505,041.12/x - Step 3: Cross multiply
77,311,758.24x = 106,690,294.80 × 42,505,041.12 - Step 4: Simplify right side
77,311,758.24x = 4,534,875,367,578,922 - Step 5: Solve for x
x = 4,534,875,367,578,922/77,311,758.24 - Step 6: Final answer
x = 58,656,994.37
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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.