Finding the Fourth Proportional to 19,659,790.35, 29,489,660.15 and 5,282,858.31
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Solution
The fourth proportional to 19,659,790.35, 29,489,660.15 and 5,282,858.31 is: 7,924,280.65
Step by Step Solution
- Step 1: Write the proportion equation
19,659,790.35 : 29,489,660.15 = 5,282,858.31 : x - Step 2: Convert to fraction form
19,659,790.35/29,489,660.15 = 5,282,858.31/x - Step 3: Cross multiply
19,659,790.35x = 29,489,660.15 × 5,282,858.31 - Step 4: Simplify right side
19,659,790.35x = 155,789,696,156,089.03 - Step 5: Solve for x
x = 155,789,696,156,089.03/19,659,790.35 - Step 6: Final answer
x = 7,924,280.65
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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.