Finding the Fourth Proportional to 782,977,660.68, 1,080,578,027.70 and 430,615,737.48
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Solution
The fourth proportional to 782,977,660.68, 1,080,578,027.70 and 430,615,737.48 is: 594,287,586.57
Step by Step Solution
- Step 1: Write the proportion equation
782,977,660.68 : 1,080,578,027.70 = 430,615,737.48 : x - Step 2: Convert to fraction form
782,977,660.68/1,080,578,027.70 = 430,615,737.48/x - Step 3: Cross multiply
782,977,660.68x = 1,080,578,027.70 × 430,615,737.48 - Step 4: Simplify right side
782,977,660.68x = 465,313,904,302,719,424 - Step 5: Solve for x
x = 465,313,904,302,719,424/782,977,660.68 - Step 6: Final answer
x = 594,287,586.57
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.