Finding the Fourth Proportional to 28,554,124.68, 42,740,829.74 and 18,305,287.56
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Solution
The fourth proportional to 28,554,124.68, 42,740,829.74 and 18,305,287.56 is: 27,400,005.70
Step by Step Solution
- Step 1: Write the proportion equation
28,554,124.68 : 42,740,829.74 = 18,305,287.56 : x - Step 2: Convert to fraction form
28,554,124.68/42,740,829.74 = 18,305,287.56/x - Step 3: Cross multiply
28,554,124.68x = 42,740,829.74 × 18,305,287.56 - Step 4: Simplify right side
28,554,124.68x = 782,383,178,943,700 - Step 5: Solve for x
x = 782,383,178,943,700/28,554,124.68 - Step 6: Final answer
x = 27,400,005.70
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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.