Finding the Fourth Proportional to 83,491,547.36, 125,241,257.63 and 68,891,386.86
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Solution
The fourth proportional to 83,491,547.36, 125,241,257.63 and 68,891,386.86 is: 103,340,328.50
Step by Step Solution
- Step 1: Write the proportion equation
83,491,547.36 : 125,241,257.63 = 68,891,386.86 : x - Step 2: Convert to fraction form
83,491,547.36/125,241,257.63 = 68,891,386.86/x - Step 3: Cross multiply
83,491,547.36x = 125,241,257.63 × 68,891,386.86 - Step 4: Simplify right side
83,491,547.36x = 8,628,043,930,393,485 - Step 5: Solve for x
x = 8,628,043,930,393,485/83,491,547.36 - Step 6: Final answer
x = 103,340,328.50
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1.5x scale
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.