Finding the Fourth Proportional to 145,761,645.09, 218,642,882.69 and 42,139,285.99
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Solution
The fourth proportional to 145,761,645.09, 218,642,882.69 and 42,139,285.99 is: 63,209,048.98
Step by Step Solution
- Step 1: Write the proportion equation
145,761,645.09 : 218,642,882.69 = 42,139,285.99 : x - Step 2: Convert to fraction form
145,761,645.09/218,642,882.69 = 42,139,285.99/x - Step 3: Cross multiply
145,761,645.09x = 218,642,882.69 × 42,139,285.99 - Step 4: Simplify right side
145,761,645.09x = 9,213,454,963,351,930 - Step 5: Solve for x
x = 9,213,454,963,351,930/145,761,645.09 - Step 6: Final answer
x = 63,209,048.98
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.