Finding the Fourth Proportional to 19,418,051.20, 29,138,740.80 and 8,057,315.20
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Solution
The fourth proportional to 19,418,051.20, 29,138,740.80 and 8,057,315.20 is: 12,090,812.65
Step by Step Solution
- Step 1: Write the proportion equation
19,418,051.20 : 29,138,740.80 = 8,057,315.20 : x - Step 2: Convert to fraction form
19,418,051.20/29,138,740.80 = 8,057,315.20/x - Step 3: Cross multiply
19,418,051.20x = 29,138,740.80 × 8,057,315.20 - Step 4: Simplify right side
19,418,051.20x = 234,780,019,156,700.16 - Step 5: Solve for x
x = 234,780,019,156,700.16/19,418,051.20 - Step 6: Final answer
x = 12,090,812.65
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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.