Finding the Fourth Proportional to 135,047,676.07, 186,308,725.09 and 90,408,029.53
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Solution
The fourth proportional to 135,047,676.07, 186,308,725.09 and 90,408,029.53 is: 124,724,876.50
Step by Step Solution
- Step 1: Write the proportion equation
135,047,676.07 : 186,308,725.09 = 90,408,029.53 : x - Step 2: Convert to fraction form
135,047,676.07/186,308,725.09 = 90,408,029.53/x - Step 3: Cross multiply
135,047,676.07x = 186,308,725.09 × 90,408,029.53 - Step 4: Simplify right side
135,047,676.07x = 16,843,804,719,633,372 - Step 5: Solve for x
x = 16,843,804,719,633,372/135,047,676.07 - Step 6: Final answer
x = 124,724,876.50
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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.