Finding the Fourth Proportional to 66,424,659.12, 99,636,395.76 and 20,986,452
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Solution
The fourth proportional to 66,424,659.12, 99,636,395.76 and 20,986,452 is: 31,479,490.67
Step by Step Solution
- Step 1: Write the proportion equation
66,424,659.12 : 99,636,395.76 = 20,986,452 : x - Step 2: Convert to fraction form
66,424,659.12/99,636,395.76 = 20,986,452/x - Step 3: Cross multiply
66,424,659.12x = 99,636,395.76 × 20,986,452 - Step 4: Simplify right side
66,424,659.12x = 2,091,014,437,070,243.75 - Step 5: Solve for x
x = 2,091,014,437,070,243.75/66,424,659.12 - Step 6: Final answer
x = 31,479,490.67
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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.