Finding the Fourth Proportional to 471,849,681.14, 651,431,878.84 and 419,494,106.73
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Solution
The fourth proportional to 471,849,681.14, 651,431,878.84 and 419,494,106.73 is: 579,150,193.45
Step by Step Solution
- Step 1: Write the proportion equation
471,849,681.14 : 651,431,878.84 = 419,494,106.73 : x - Step 2: Convert to fraction form
471,849,681.14/651,431,878.84 = 419,494,106.73/x - Step 3: Cross multiply
471,849,681.14x = 651,431,878.84 × 419,494,106.73 - Step 4: Simplify right side
471,849,681.14x = 273,271,834,109,431,424 - Step 5: Solve for x
x = 273,271,834,109,431,424/471,849,681.14 - Step 6: Final answer
x = 579,150,193.45
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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.