Finding the Fourth Proportional to 19,803,479.12, 29,699,455.88 and 7,670,236.40
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Solution
The fourth proportional to 19,803,479.12, 29,699,455.88 and 7,670,236.40 is: 11,503,122.57
Step by Step Solution
- Step 1: Write the proportion equation
19,803,479.12 : 29,699,455.88 = 7,670,236.40 : x - Step 2: Convert to fraction form
19,803,479.12/29,699,455.88 = 7,670,236.40/x - Step 3: Cross multiply
19,803,479.12x = 29,699,455.88 × 7,670,236.40 - Step 4: Simplify right side
19,803,479.12x = 227,801,847,550,970.03 - Step 5: Solve for x
x = 227,801,847,550,970.03/19,803,479.12 - Step 6: Final answer
x = 11,503,122.57
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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.