Finding the Fourth Proportional to 14,985,402.21, 20,679,854.58 and 8,109,884.21
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Solution
The fourth proportional to 14,985,402.21, 20,679,854.58 and 8,109,884.21 is: 11,191,639.95
Step by Step Solution
- Step 1: Write the proportion equation
14,985,402.21 : 20,679,854.58 = 8,109,884.21 : x - Step 2: Convert to fraction form
14,985,402.21/20,679,854.58 = 8,109,884.21/x - Step 3: Cross multiply
14,985,402.21x = 20,679,854.58 × 8,109,884.21 - Step 4: Simplify right side
14,985,402.21x = 167,711,226,020,038.91 - Step 5: Solve for x
x = 167,711,226,020,038.91/14,985,402.21 - Step 6: Final answer
x = 11,191,639.95
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.