Finding the Fourth Proportional to 85,682,276.79, 128,527,548.63 and 28,173,274.71
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Solution
The fourth proportional to 85,682,276.79, 128,527,548.63 and 28,173,274.71 is: 42,261,271.19
Step by Step Solution
- Step 1: Write the proportion equation
85,682,276.79 : 128,527,548.63 = 28,173,274.71 : x - Step 2: Convert to fraction form
85,682,276.79/128,527,548.63 = 28,173,274.71/x - Step 3: Cross multiply
85,682,276.79x = 128,527,548.63 × 28,173,274.71 - Step 4: Simplify right side
85,682,276.79x = 3,621,041,935,355,874 - Step 5: Solve for x
x = 3,621,041,935,355,874/85,682,276.79 - Step 6: Final answer
x = 42,261,271.19
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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.