Finding the Fourth Proportional to 39,840,265,511.09, 54,979,432,926.73 and 21,775,771,259.49
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Solution
The fourth proportional to 39,840,265,511.09, 54,979,432,926.73 and 21,775,771,259.49 is: 30,050,491,381.78
Step by Step Solution
- Step 1: Write the proportion equation
39,840,265,511.09 : 54,979,432,926.73 = 21,775,771,259.49 : x - Step 2: Convert to fraction form
39,840,265,511.09/54,979,432,926.73 = 21,775,771,259.49/x - Step 3: Cross multiply
39,840,265,511.09x = 54,979,432,926.73 × 21,775,771,259.49 - Step 4: Simplify right side
39,840,265,511.09x = 1,197,219,555,388,768,911,360 - Step 5: Solve for x
x = 1,197,219,555,388,768,911,360/39,840,265,511.09 - Step 6: Final answer
x = 30,050,491,381.78
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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.