Finding the Fourth Proportional to 780,764,122.14, 1,171,148,920.62 and 198,498,430.41
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Solution
The fourth proportional to 780,764,122.14, 1,171,148,920.62 and 198,498,430.41 is: 297,748,341.56
Step by Step Solution
- Step 1: Write the proportion equation
780,764,122.14 : 1,171,148,920.62 = 198,498,430.41 : x - Step 2: Convert to fraction form
780,764,122.14/1,171,148,920.62 = 198,498,430.41/x - Step 3: Cross multiply
780,764,122.14x = 1,171,148,920.62 × 198,498,430.41 - Step 4: Simplify right side
780,764,122.14x = 232,471,222,519,435,648 - Step 5: Solve for x
x = 232,471,222,519,435,648/780,764,122.14 - Step 6: Final answer
x = 297,748,341.56
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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.