Finding the Fourth Proportional to 19,807,271.20, 29,693,626.80 and 7,685,005.60
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Solution
The fourth proportional to 19,807,271.20, 29,693,626.80 and 7,685,005.60 is: 11,520,803.95
Step by Step Solution
- Step 1: Write the proportion equation
19,807,271.20 : 29,693,626.80 = 7,685,005.60 : x - Step 2: Convert to fraction form
19,807,271.20/29,693,626.80 = 7,685,005.60/x - Step 3: Cross multiply
19,807,271.20x = 29,693,626.80 × 7,685,005.60 - Step 4: Simplify right side
19,807,271.20x = 228,195,688,242,310.06 - Step 5: Solve for x
x = 228,195,688,242,310.06/19,807,271.20 - Step 6: Final answer
x = 11,520,803.95
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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.