Finding the Fourth Proportional to 83,328,865.83, 124,486,480.85 and 53,943,313.02
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Solution
The fourth proportional to 83,328,865.83, 124,486,480.85 and 53,943,313.02 is: 80,586,878.70
Step by Step Solution
- Step 1: Write the proportion equation
83,328,865.83 : 124,486,480.85 = 53,943,313.02 : x - Step 2: Convert to fraction form
83,328,865.83/124,486,480.85 = 53,943,313.02/x - Step 3: Cross multiply
83,328,865.83x = 124,486,480.85 × 53,943,313.02 - Step 4: Simplify right side
83,328,865.83x = 6,715,213,202,980,069 - Step 5: Solve for x
x = 6,715,213,202,980,069/83,328,865.83 - Step 6: Final answer
x = 80,586,878.70
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.