Finding the Fourth Proportional to 151,939,038.12, 209,675,579.58 and 82,326,303.24
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Solution
The fourth proportional to 151,939,038.12, 209,675,579.58 and 82,326,303.24 is: 113,610,139.70
Step by Step Solution
- Step 1: Write the proportion equation
151,939,038.12 : 209,675,579.58 = 82,326,303.24 : x - Step 2: Convert to fraction form
151,939,038.12/209,675,579.58 = 82,326,303.24/x - Step 3: Cross multiply
151,939,038.12x = 209,675,579.58 × 82,326,303.24 - Step 4: Simplify right side
151,939,038.12x = 17,261,815,346,525,832 - Step 5: Solve for x
x = 17,261,815,346,525,832/151,939,038.12 - Step 6: Final answer
x = 113,610,139.70
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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.