Finding the Fourth Proportional to 11,228,570.40, 16,817,972.40 and 8,696,013.60
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Solution
The fourth proportional to 11,228,570.40, 16,817,972.40 and 8,696,013.60 is: 13,024,749.50
Step by Step Solution
- Step 1: Write the proportion equation
11,228,570.40 : 16,817,972.40 = 8,696,013.60 : x - Step 2: Convert to fraction form
11,228,570.40/16,817,972.40 = 8,696,013.60/x - Step 3: Cross multiply
11,228,570.40x = 16,817,972.40 × 8,696,013.60 - Step 4: Simplify right side
11,228,570.40x = 146,249,316,714,824.62 - Step 5: Solve for x
x = 146,249,316,714,824.62/11,228,570.40 - Step 6: Final answer
x = 13,024,749.50
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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.