Finding the Fourth Proportional to 276,804,538.90, 415,206,808.35 and 161,729,847.70
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Solution
The fourth proportional to 276,804,538.90, 415,206,808.35 and 161,729,847.70 is: 242,594,771.55
Step by Step Solution
- Step 1: Write the proportion equation
276,804,538.90 : 415,206,808.35 = 161,729,847.70 : x - Step 2: Convert to fraction form
276,804,538.90/415,206,808.35 = 161,729,847.70/x - Step 3: Cross multiply
276,804,538.90x = 415,206,808.35 × 161,729,847.70 - Step 4: Simplify right side
276,804,538.90x = 67,151,333,878,448,584 - Step 5: Solve for x
x = 67,151,333,878,448,584/276,804,538.90 - Step 6: Final answer
x = 242,594,771.55
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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.