Finding the Fourth Proportional to 20,702,989.05, 31,060,244.70 and 9,032,381.67
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Solution
The fourth proportional to 20,702,989.05, 31,060,244.70 and 9,032,381.67 is: 13,551,085.99
Step by Step Solution
- Step 1: Write the proportion equation
20,702,989.05 : 31,060,244.70 = 9,032,381.67 : x - Step 2: Convert to fraction form
20,702,989.05/31,060,244.70 = 9,032,381.67/x - Step 3: Cross multiply
20,702,989.05x = 31,060,244.70 × 9,032,381.67 - Step 4: Simplify right side
20,702,989.05x = 280,547,984,893,994.62 - Step 5: Solve for x
x = 280,547,984,893,994.62/20,702,989.05 - Step 6: Final answer
x = 13,551,085.99
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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.