Finding the Fourth Proportional to 782,929,999.63, 1,080,474,529.76 and 430,534,881.55
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Solution
The fourth proportional to 782,929,999.63, 1,080,474,529.76 and 430,534,881.55 is: 594,155,255.14
Step by Step Solution
- Step 1: Write the proportion equation
782,929,999.63 : 1,080,474,529.76 = 430,534,881.55 : x - Step 2: Convert to fraction form
782,929,999.63/1,080,474,529.76 = 430,534,881.55/x - Step 3: Cross multiply
782,929,999.63x = 1,080,474,529.76 × 430,534,881.55 - Step 4: Simplify right side
782,929,999.63x = 465,181,973,688,013,568 - Step 5: Solve for x
x = 465,181,973,688,013,568/782,929,999.63 - Step 6: Final answer
x = 594,155,255.14
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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.