Finding the Fourth Proportional to 18,569,981.60, 27,854,972.40 and 11,767,536.80
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Solution
The fourth proportional to 18,569,981.60, 27,854,972.40 and 11,767,536.80 is: 17,651,305.20
Step by Step Solution
- Step 1: Write the proportion equation
18,569,981.60 : 27,854,972.40 = 11,767,536.80 : x - Step 2: Convert to fraction form
18,569,981.60/27,854,972.40 = 11,767,536.80/x - Step 3: Cross multiply
18,569,981.60x = 27,854,972.40 × 11,767,536.80 - Step 4: Simplify right side
18,569,981.60x = 327,784,412,779,984.31 - Step 5: Solve for x
x = 327,784,412,779,984.31/18,569,981.60 - Step 6: Final answer
x = 17,651,305.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.