Finding the Fourth Proportional to 159,530,237.10, 239,295,355.65 and 136,571,985.90
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Solution
The fourth proportional to 159,530,237.10, 239,295,355.65 and 136,571,985.90 is: 204,857,978.85
Step by Step Solution
- Step 1: Write the proportion equation
159,530,237.10 : 239,295,355.65 = 136,571,985.90 : x - Step 2: Convert to fraction form
159,530,237.10/239,295,355.65 = 136,571,985.90/x - Step 3: Cross multiply
159,530,237.10x = 239,295,355.65 × 136,571,985.90 - Step 4: Simplify right side
159,530,237.10x = 32,681,041,937,767,288 - Step 5: Solve for x
x = 32,681,041,937,767,288/159,530,237.10 - Step 6: Final answer
x = 204,857,978.85
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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.